CHAPTER XXIV. The Treatment of Apes in

The Treatment of Apes in Captivity--Temperature--Building--Food--Occupation

In conclusion I deem it in order to offer a few remarks with regard to the causes of death among these apes, and to say something regarding the treatment of animals in captivity. We know so little and assume so much concerning them that we often violate the very laws which we are trying to enforce.

We have already noticed the fact that the gorilla is confined by nature to a low, humid region, reeking with miasma and the effluvia of decaying vegetation. The atmosphere in which he thrives is one in which human life can hardly exist. We know in part why man cannot live in such an atmosphere and under such conditions, but we cannot say with certainty why the ape does do so. It would seem that the very element that is fatal to man gives strength and vitality to the gorilla. We know that all forms of animal life are not affected in the same way by the same causes; and while it may be said in round numbers that what is good for man is good for apes, that is not a fact.

The human race is the most widely distributed of any genus of mammals, and, as a race, it can undergo greater extremes of change in climate, food, or condition than any other kind of animal. Man’s migratory habits, both inherent and acquired, have fitted him for a life of vicissitudes, and such a life inures him, as an individual, to all extremes. On the other hand, the gorilla, as a genus, is confined to a small habitat, which is uniform in climate, products, and topography. Having been so restricted to these conditions he is unfitted for any radical change, and when such is forced upon him the result must always be to his injury.

In certain parts of the American tropics there is found a rich gray moss growing in great profusion in these localities and on certain kinds of trees. It is not confined to any special level, but thrives best on low elevations. Under favorable conditions it grows at altitudes far above the surrounding swamps. Its character and quantity, however, are measured by the altitude at which it grows. It is an aërial plant, and it may be detached from the boughs of one tree and transplanted upon those of another. It may be taken with safety to a great distance, so long as an atmosphere is supplied to it that is suited to its nature, but when removed from its normal conditions and placed in a purer air it begins to languish and soon dies. If returned in time, however, to its former place or one of like character, it will revive and continue to grow.

What element this plant extracts from the impure air is unknown. It cannot be carbonic acid gas, which is the chief food of plants, nor can it be any form of nitrogen. It is well known that the plant cannot long survive in a pure atmosphere. Whatever the ingredient extracted may be, it is certain that it is one that is deadly to human life and one that other plants refuse. Moisture and heat alone will not account for it. We have another striking instance in the eucalyptus, which lives upon the poison of the air around it. There are many other such cases in vegetable life; and while the animal is a higher organism than the plant, there are certain laws of life that obtain in both kingdoms and involve the same principles.

Between the case of the gorilla and that of the plant there is some analogy. It may not be the same element that sustains them both, but it is possible that the very microbes which germinate disease and prove fatal to man sustain the life of the ape in the prime of health. The poison which destroys life in man preserves it in the ape.

The chimpanzee is distributed over a much greater range than the gorilla and is capable of undergoing a much greater degree of change in food and temperature. The history of these apes in captivity shows that in that state the chimpanzee lives much the longer and requires much less care. From my own observation I assert that all these apes can undergo a greater range of temperature than of humidity. The latter appears to be one of the essential things to the life of a gorilla. One fatal mistake made in treating him is furnishing him with a dry, warm atmosphere and depriving him of the poison contained in the malarious air in which he naturally spends his life. Both of these apes need humidity. In a dry air the chimpanzee will live longer than the gorilla, but neither of them can long survive it; and it would appear that a salt atmosphere is best for the gorilla.

I believe that one of these apes could be kept in good condition for any length of time if he were supplied with a normal humidity in an atmosphere laden with miasma and allowed to vary in its temperature. A constant degree of heat is not good for any animal. There is no place in all the earth where nature sustains a uniform degree of heat. We need not go to either extreme, but a change is requisite to bring into play all the organs of the body.

The treatment which I would recommend for the care of apes is to build them a house entirely apart from that of other animals. It should be eighteen or twenty feet wide by thirty-five or forty feet long, and at least fifteen feet high. It should have no floor except earth, and that should be of sandy loam or vegetable earth. In one end of this building there should be a pool of water twelve or fifteen feet in diameter; and, imbedded in mold under the water, there should be a steam coil to regulate the temperature as may be desired. In this pool should be grown a dense crop of water plants such as are found in the marshes of the country in which the gorilla lives. This pool should not be cleaned out nor the water changed; but the plants should be allowed to grow and decay in a natural way. Neither the pool nor the house should be kept at a uniform heat, but the temperature should be allowed to vary from 60° to 90°.

In addition to the things above mentioned, the place should be provided with the means of giving it a spray of tepid water, which should be turned on once or twice a day and allowed to continue for at least an hour at a time. The water for this purpose should be taken from the pool, but should never be warmer than the usual temperature of tropical rain. The animal should not be required to take a bath in this way, but should be left to his own choice about it.

The house should contain a thin partition that could be removed at will, and the end of the building farthest from the pool should be occupied by a strong tree, either dead or alive, to afford the inmates proper exercise. The south side of the house should be of glass, and at least half of the top should be of the same. These parts should be provided with heavy canvas curtains, to be drawn over them so as to adjust or regulate the sunlight. In the summer time the building should be kept quite open, so as to admit the air and the rain. The rule that strangers or visitors should not annoy or tease them should be enforced without respect to person, time, or rank. No visitor should be allowed on any terms to give them any kind of food. The reasons for these precautions are obvious to any one familiar with the keeping of animals; but in the case of the gorilla their observance cannot be waived with impunity.

The ape does not need to be pampered. On the contrary, he should be permitted to rough it. Half of the gorillas that have ever been in captivity have died from overnursing. By nature they are strong and robust if the proper conditions exist; but when these are changed they become frail and tender creatures. They should not be restricted to a vegetable diet nor limited to a few articles of food, but should be allowed to select such things as they prefer to eat. I have grave doubts as to the wisdom of limiting the quantity. One mistake is often committed in the treatment of animals, and that is to continue the same diet at all times and to limit that to one or two items. It may be observed that the higher the form of organism the more diverse the taste becomes. Very hardy animals or those of low forms may be restricted to one kind of staple food. The higher form demands a change.

One thing above all others that I would inhibit is the use of straw of any kind in the cage, for beds or for any other purpose. If it be desired to furnish them with such a comfort, nothing should ever be used but dead leaves, if they can be supplied. In their absence a canvas mattress or wire matting should be used. There are certain kinds of dust given off by the dry straw of all cereal plants. This is deleterious to the health of man, but vastly more so to these apes. It is taken into the lungs and through them acts upon other parts of the body by suppressing the circulation and respiration. No matter how clean the straw may be, the effect will be the same in the end. Hay is less harmful than straw, but even the use of hay should not be permitted.

Another thing which is necessary is to entertain or amuse the apes in some way, otherwise they become despondent and gloomy. It is believed by those who are familiar with these creatures that loneliness or solitude is a fruitful cause of death. This is especially true of the gorilla.

Another important fact, little known, is that tobacco smoke is usually fatal to a gorilla. Every native hunter that I met in Africa testifies that this simple thing will kill any gorilla in the forest if he is subjected to the fumes for a sufficient time. I have reason to believe that this is true. It may not invariably prove fatal, but it will be so in many instances. The chimpanzee is not so much affected by it, although he dislikes it. The gorilla detests it and shows at all times his strong aversion to it. I have no doubt that this is one of the reasons why these apes die on board the ships by which they are brought from Africa.

Both of these apes are possessed, in a degree, of savage and resentful instincts; but these are much stronger in the gorilla than in the chimpanzee. The gorilla, therefore, requires firm and consistent treatment. This can be used without severity or cruelty, but the intellect of the gorilla must not be underrated. He studies with a keen perception the motives and intentions of man, and is seldom mistaken in his interpretation of them. He often manifests a violent dislike for certain persons, and when this is discovered to be the case, the object of his dislike should not be permitted in his presence, for the result is to enrage the ape and excite his nervous nature. When he becomes sullen or obstinate, he should not be coaxed or indulged, nor yet used with harshness. He should either be left alone for a time or be diverted by a change of treatment.

INDEX

“Aaron” his intelligent expression, 144, 146, 147 his capture, 145 on the journey, 147, 148 his tricks, 148 ” one aversion, 148, 149 ” sympathy for Moses, 149-152 realization of death, 151, 152 loses his mate, 170 his illness and death, 172-174

“Aaron” with “Elisheba” acts as a protector, 156 his reliance on human aid, 157, 158-159 driving the cow, 158, 159 we start for Liverpool, 159 the bogie on the steamer, 159 solicitude of the apes, 159-160 their ingenuity, 161 the ape in the mirror, 161-162 Aaron’s jealousy, 162-165 the rivals, 163-165 arrival at Liverpool, 167, 168 Elisheba’s illness, 168 Aaron again becomes nurse, 170

Abstract ideas in simians, Lack of, 20, 36

Affection in animals not mere instinct, 58-59, 173

Age of maturity in apes, 98, 191, 192

Amusement (of captives) captives should have, 55-56, 283 means of, 20-21, 33, 35, 54-56

Angola, 268

Anthropoid or manlike apes (see also Chimpanzee, Gorilla, Gibbon, Orang, and references under Chimpanzee captives) the group, 3 superior intelligence, 35, 60

Apes (see also Simians and references under Anthropoid apes) resemblance to man, 2 described, 3, 92-98, 223 ff. anthropoid or manlike group, 3 skeleton a duplicate of man’s, 4, 7 superior intelligence of anthropoid, 35, 60 travelers’ stories untrue, 71-72, 235-236, 266 ff. do not act in concert, 268

Approval, Apes’ love of, 197, 203

Arboreal habit, The, 96-97, 224-225, 245

Baboon, The, 3, 14, 15, 196-197, 224, 266, 277 relative plane, 3, 277

Bailey, Mr. James A., New York City his valuable apes, 190-191 corroborative testimony, 268

“Banquo,” 28-29

Battel, Henry (1590), 267, 268

Batuna (plant), 77, 245

Bellevue Gardens, Manchester, England (see also Consul II) Consul II, 193 a pugnacious ape, 198-200 chimpanzee and orang, 200

Borneo, 274

Buffalo (N. Y.) Museum, Specimens in, 104

Cage in the jungle, The idea first conceived, 60 exceptional opportunities it afforded, 60, 71, 260 its construction, 62-64 its furniture, 64-66 date of occupancy, 71 length of occupancy, 71 my chimpanzee companion, 71 (see also Moses) the native boy, 71, 120, 121, 125, 148-149 program for the day, 73 ff. my menu, 73, 77, 79, 84 wild visitors, 75 ff., 186-190, 252-260 the tornado, 79 ff.

Cameroon (valley), 85, 213, 215, 267

Capuchin monkey, The (see also under Monkey), 18-19, 28, 29, 38, 39, 42, 52

Care of simian captives amusement of, 20-21, 33, 35, 54-56, 283 their short lives, 146, 200, 201 effects of confinement, 231 cannot live in pure air, 280, 281 condition compared to a certain tropical moss, 279-280 humidity essential, 280-282 diet, 282-283 dust of straw injurious, 283 tobacco fatal to the gorilla, 283-284

Catarrhini, 3

“Caucasian of monkeys, The,” 35

Cebus monkey, The (see also under Monkey) brown species, 17, 24, 42 experiments with, 17, 18 superior intelligence, 35 white-faced species, 42

Charla (lake), 25

Charleston, S. C., Experiments at, 24 ff.

Cherry, Mr. William S., African traveler, 212

Chicago Gardens, Experiments at, 17, 29

“Chico” his unusual size, 190 ” scream, 241 ” fear of an elephant, 268

Chi Loango (river), 211, 218

Chimpanzee, The (see also Kulu-kamba, Ntyigo, and references under Chimpanzee captives) order of intelligence, 4, 60, 85, 99, 105-106 perception of number, 34 resemblance to man (see also Skeleton), 60-62, 92 in native haunts, 70, 71, 186-190 habitat, 85-87, 280 derivation and meaning of name, 86 two species, 86 ff. described in detail, 92-98, 188 position in sleep, 96 longevity, 98 age of maturity, 98, 191, 192 breeding season, 98-99 social traits and government, 99-105 reasoning power and mental status, 105, 116, 206 does not bear captivity well, 146 pulmonary trouble common, 146 maladies resemble man’s, 186 seen from the cage, 186-190 climate of America favorable, 200-201 mode of attack, 237 scream and beating sound, 240-242 disposition, 250, 284

Chimpanzees, Speech of extent of vocabulary, 108, 115, 136 number of words interpreted, 108, 115 pitch of voice, 108, 109, 111, 112, 116 vocal organs, 108-110 phonetic symbols invented by author, 109-113 method of producing sounds, 110-111 character and meaning of sounds, 112-115, 123, 125, 130, 135-137 quality of voice, 113 use of gestures, 114-115 possibility of development, 139 resemblance to human speech, 116 constant meanings of sounds, 136, 137

Chimpanzee captives, Some (see Aaron; Elisheba; Sailor’s pet; Village pet; Gaboon, captives at; Izanga; Chico; Johanna; Consul II; Clever kulu; Five young kulus; Sally)

Cincinnati Zoölogical Garden, Experiments at, 14, 28, 200, 241

Classification of simians, 2-4

Clever kulu, A her color, 202 facial expression, 203, 206 love of approval, 203, 204 always in mischief, 204 unties complicated knots, 204-206 evidence of reasoning power, 206

Color, Simians’ perception of, 30-32, 35, 36, 139

Concrete ideas, Simians can express only, 36

Congo (river), 66, 85, 191, 209, 211, 212, 216, 218, 241, 267, 268, 270, 272

Constant meanings of sounds in simian speech, 15, 18, 23, 135-137

“Consul II” his remarkable sagacity, 193 rides a “bike,” 193 smokes a pipe, 193-195 draws with chalk or pencil, 195, 196 distinguishes three letters, 196 love of teasing, 196-197 aversion to being clothed, 197 loves approval, 197 attempts at burglary, 198 his keeper’s zeal, 198

Cranio-facial angles of man, 8 ” apes, 9 ” monkeys, 9 ” reptiles, 10

Cross, Dr., Liverpool, England guardian of Aaron and Elisheba, 168, 172

Cruelty unnecessary in hunting, 146 inherent in natives, 157, 184-185

Crystal Mountains, 211, 214

Cynocephalus, 266

“Darwin” learns Puck’s sound for “food,” 43

Deaf-mutes, Method of teaching applied to simian speech, 110

Death, Apes’ realization of, 151, 152, 170, 259

Deemin, Mr. James, English trader, 223, 261

Descriptions of simians of monkeys, 3, 224 ” chimpanzee, 92-98, 224 ” gorilla, 223 ff.

Development of “calf” a means of comparison, 227

Dexterity and ingenuity of apes, 122, 126, 129, 130, 132, 161, 184, 193-198, 204-206 of monkeys, 56-57

Dialects (see types under Monkeys, Speech of)

Dimension, Simians’ perception of, 30, 36

“Dodo” Nemo’s apologetic speech, 47 her appeal to her keeper, 48-50

Drake, Mr. J. H., African traveler, 261

Drum, The (see Kanjo)

Du Chaillu, Paul, African traveler, 214, 272, 273

Early reports of apes (see Ford, Savage, Wilson, Walker, Hanno, Battel, Du Chaillu)

“Elisheba” (see also Aaron with Elisheba) where captured, 154 her shrewish temper, 154-156 her selfishness and perversity, 155-156 her champion and slave, 156, 162-165 a suitor rebuffed, 163-165 submissive only from policy, 166 her illness and death, 168-171

Eloquence of monkeys’ speech, 22, 47-50

Emotions, Simians display human sympathy, 149-152, 170-171 aversion, 26, 148-149 sorrow, 50, 152, 170 jealousy, 46, 125, 162-165, 186 contempt, 203, 206, 250 affection, 58-59, 134-135, 173, 174

Enjocko, 268

Enumeration (see Number, Perception of)

Esyira (tribe and country), 140, 144, 145, 218, 228, 267, 269

Ethics, Monkeys’ code of, 30

Etymology of native names, 232, 272

Evolution, 36

Expression (see also Facial expression) defined, 13 speech a means of, 13 animals’ limit of, 13, 23

Facial expression of simians, 1, 16, 46, 47, 126, 146-147, 150, 162, 170, 182, 197, 202-204, 206, 207, 229

Falkenstein, Dr., 267

Ferocity of apes exaggerated, 229, 235-236

Ferran Vaz (lake), 66, 144, 149, 219, 228, 270

Fiote (tribe and language), 86, 267

Five young kulus, 207-210

Food of chimpanzee, 106-107, 128-129, 132 of gorilla, 245-246

Ford, Dr., African traveler, 214, 217

Form, Simians’ perception of, 30, 139, 196

Fort Gorilla, 71

Gaboon (town and river), 66, 153, 155, 182, 211, 214-217, 268, 272

Gaboon, Some captives at, 182 ff. their table manners, 182-184 their love of beer, 183-184 their dexterity, 184 maladies resemble man’s, 186

Gibbon, The order of intelligence, 4 arboreal habit, 96, 276 size and activity, 275-276 skeleton, 276 can stand erect, 276 wonderful leaping power, 276 several known species, 277 vocal qualities, 277

Glave, E. J., African traveler, 241

Goode, Rev. A. C., late missionary at Batanga, 272

Gorilla, The order of intelligence, 4, 211, 232 resemblance to man, 60 in native haunts, 70, 71 seen from the cage, 71, 77-78, 186, 252-260 his scream and beating sound, 84, 109, 237-242 arboreal habit, 96-97, 224-225, 245 nomadic, 97, 233 habitat, 211 ff., 273, 278-279 early reports of (see references under Early reports) skeleton, 218-223 described in detail, 223 ff. cannot walk erect, 225 the “calf” as means of comparison, 227 species, 228, 274 compared with other apes and with man, 228-231 social traits and government, 231 ff. derivation of name, 232 in council, 234 ferocity exaggerated, 235-236, 262, 273 mode of attack, 236-237 sounds wrongly attributed to, 109, 240-242 method of carrying young, 242, 259 disposition, 242, 250-251, 284 food, 245-246, 282-283 stealthiness, 253, 262 calling sound, 254 difficult to find, 260-263 only one ever brought to America, 263 a wild gorilla takes his own photograph, 264-265 care in captivity, 278 ff.

Great forest, The, 68

Guinea, Gulf of, 85, 266

Habitat of gorilla, 211 ff., 273, 278-279 of chimpanzee, 85-87, 280 of orang, 274 of gibbon, 276

Handmann, Mr. Otto, German consul at Gaboon, 182

Hanno, 500 B.C., earliest mention of the ape, 266-267

Harris, Captain, African traveler, 217

Harvard Medical School Collection, 6

Hornaday, W. T., authority on orang, 275

Human faculties, embryo of all, exists in simians, 37

Ikomba njina, 232, 234, 235

Inenga (lake), 218

Ingenuity of simians (see Dexterity)

Izanga (lake), 184, 212, 223 an unhappy captive at, 184-185 an act of mercy, 185

“Jack,” 25

“Jennie,” 27

“Johanna” her value for scientific use, 190, 192 probable age, 191 size, 191 intellectual plane, 192

“Jokes” 24 ff. his fright, 24 the reconciliation, 26

Journeys in the jungle to the chimpanzee country, 66 a five days’ journey on foot, 148 to the coast, 153

Jungle, the African described, 66-70, 153 daily life in, 73 ff. the quiet hour, 77 a tornado, 79 ff.

Kabinda (town), 191

Kanga ntyigo etymology of the name, 272

Kanjo, The, 102-104 the drum, 104, 241

Keller, Helen with Nellie, 52-53

Kisanga (valley and river), 212

Komo (river, also name of gunboat), 153, 213, 217

Kongo, 272

Kulu-kamba (see also under Chimpanzee, and references under Chimpanzee captives) its habitat, 87 described and compared with ntyigo, 87-91 Moses’ successor, 144 highest type of all apes, 202, 210 name applied to different types, 270

Lamberene (town), 270

Lemur, 2, 224 relative plane, 2, 277

Loango (valley), 192, 211, 267, 269

Longevity of chimpanzee, 98

Lopez, African explorer, 270

Lopez, Cape, 153, 270

Mafuka, 269, 274

Maladies of simians pulmonary trouble common, 146 resemble man’s, 186

Malay Peninsula, 276

Mandrill, The, 14

Mayumba (town), 215, 216, 268

M’Bouve, 272

“McGinty” his jealousy, 45, 46

Meanings of certain sounds in simian speech (see also under Monkeys, Speech of, and Chimpanzees, Speech of) sound meaning “food,” 19, 28, 29, 43, 112-113 sound meaning “drink,” 19, 28, 29 sound meaning “warning,” 14, 20, 27, 113 sound meaning “alarm,” 24, 27, 113 sound meaning “friendship,” 113 sound meaning “good,” 160, 181 calling sound, 112-113, 136

Mental power and status of simians (see also under Ape, Chimpanzee, Monkey, Gorilla, “Aaron,” “Moses,” etc.) compared to man, 105 compared to the dog, 116

Menu, My daily, 73, 77, 79, 84

Mesial crest (see Gorilla, Skeleton of)

“Mickie” the boss of the school, 45-46 his tricks, 46

Middle forest, The, 68

Mirror, Experiments with, 40-41, 161-162

Mode of attack of chimpanzee, 237 of gorilla, 236-237

Moiro, 217

Monkey, The (see also Simians) human appearance, 1 relative plane, 2, 277 relationship to man, 2, 277 all simians not monkeys, 2-3 described, 3, 224 old world and new world, 3 cranio-facial angles, 9 Cebus species (see Cebus) Capuchin species (see Capuchin) perception of sound, color, form, dimension, quality, number, music, etc., 30-37 code of ethics, 30 Rhesus species (see Rhesus) difference in traits and tastes, 35 express emotion, 50 affection not mere instinct, 58-59

Monkeys, Laughter of, 38, 54-55

Monkeys, Speech of study of, 14 ff. poor success of first efforts, 15 sound meaning “alarm” or “warning,” 14, 20, 24, 27 phonograph first used, 16-18 sounds have constant meanings, 15, 18, 23 number of sounds interpreted, 18 sounds described, 19-20 speech monophrastic and monophonetic, 19, 44 pitch of voice, 20, 28, 50 resemblance to human speech, 20, 22-23 each species has its own speech, 23, 44 sign of surrender, 25 ff. sound meaning “food,” 19, 28, 29 sound meaning “drink,” 19, 28, 29 musical quality of voices, 19, 25, 45, 47, 50, 53, 57 eloquence, 22, 47-50 types of speech and inflections, 23, 42, 60

“Moses” my sole companion in the cage, 71 his breakfast, 73 his amusements, 73, 120, 122-124 his siesta, 77, 124 position in sleep, 96 learns a word of human speech, 115-116, 137-138 his capture, 117-118 his moral training, 118, 120-121, 130-132 his tricks, 120-121, 123-124, 131 dexterity and ingenuity, 122, 126, 129-130, 132-133 reading the newspaper, 123 his jealousy and temper, 125, 186 our walks in the jungle, 125 understood rights of possession, 125, 128 preferences in food, 128, 129, 132 meaning of sounds, 123, 125, 135-137 his quick vision, 125 a severe lesson, 131-132 reasoning power, 133 his devotion, 134-135 perception of form, color, music, etc., 139 he signs a legal document, 139-140 last illness, 140-142, 149-151 his chimpanzee nurse, 149-152 his death, 142, 151, 152 his claims to fame, 143

Mpongwe, 86

Music, Simians’ perception of, 35-36

Native explanation of relationships, 269-270

Native reports unreliable, 215, 231

Nazavine (bay), 270

“Nellie” her love of companionship, 20, 22 warns me of danger, 21 ff. her perception of sound, 22 with Helen Keller, 52-53 her ingenuity, 56-57

“Nemo” his diplomacy, 47 his abject apology, 47-48

Nenge Nenge (town), 214

New world monkeys, 3 their superior intelligence, 35

New York Zoölogical Gardens, Experiments at, 45-51

Nguni (river), 154, 211, 213, 218

“Nigger,” 45, 51

Njina, 228, 267, 269, 270

Njole (town), 213

Nkami (tribe, lake, and river), 66, 144, 212, 218, 272

Noogo (river), 144

Nose a distinguishing feature, The, 3

Ntcheego, 268

Ntyigo (see also under Chimpanzee) its habitat, 87 described, 87-90 compared with kulu-kamba, 90-91 distinguished from ntyii, 228

Ntyii, 223, 228, 267, 269-270

Ntyi-ne-nye-ni (village), 144

Number, Perception of by simians, 32-34, 36 by birds, 34

Ogowé (river, delta, and basin), 66, 117, 202, 211, 213, 214, 215, 217, 218, 223, 272

Old world monkeys, 3

Orang, The order of intelligence, 4 arboreal habit, 97 a captive at Bellevue, 200 compared, 274, 275

Orungu (tribe), 215

“Othello” place of capture, 221 absence of humor, 244 illness and death, 247-249 with Moses, 249, 250 his speech sounds, 251

Owen, Sir Richard, writer on Africa, 215

Parrot Island, 214

Paternal instinct in animals, 100

“Pedro” his troubles, 38 appreciation of kindness, 38 recording his sounds, 38, 39 his tale of woe, 39, 41 speech repeated to Puck, 39-41

Philadelphia Museum of Zoölogy, Specimens at, 217

Phonograph as a means of recording speech of monkeys, 15 ff. first experiments, 16 ff. behavior of monkeys on hearing, 16-18 speech and reply recorded, 18 Pedro’s speech recorded, 38 experiment with Puck, 39-41

Pitch of voice in monkeys, 20, 28 in apes, 108, 109, 111-112

Platarrhini, 3

Pongo, 267, 269

Program, A day’s, 73 ff.

“Puck,” his perplexity on hearing phonograph, 39-41

Quality, Simians’ perception of, 30

Quantity, Simians’ perception of, 32

Reasoning power in simians, Evidences of, 16-18, 33-34, 36, 37, 105, 133, 161, 206

Records of speech sounds (see Phonograph)

Rembo (river), 144, 218

Resemblances between simians and man in body, 1, 2, 4-8, 60, 92, 186, 277 in speech, 20, 22-23, 116 in affections, 58-59, 173, 174

Rhesus monkey, 32

Romanes, Professor experiments with chimpanzee, 34 experiments with “Sally,” 241

Sacrum (see Skeleton)

Sagittal ridge (see Gorilla, Skeleton of)

Sailor’s pet, A his suit rejected, 163-165

“Sally,” 241

“Sally Jones,” 244

Savage, Dr., African traveler, 213, 214, 216

Scream of gorilla and chimpanzee, 84, 109, 237-242

Sette Kama (town), 144, 212

Sheldon, Mrs. M. French, African traveler, 25

Sierra Leone, 266

Simians (see Apes, Monkeys, etc.) wide range of types, 2 different forms described, 3 two grand divisions, how distinguished, 3

Simian speech (see Monkeys, Speech of, and Chimpanzees, Speech of)

Size of apes, 96, 190, 191, 221, 230

Skeleton, The as basis of comparison, 4 chief point of difference, 4 sacrum, peculiarities of, 4-6, 8 vertebræ, number of, 5-6 causes of difference in sacrum and vertebræ, 6 sternum, differences in, 6, 7 skull, differences in, 8 general comparison, 7-8 of gorilla, 218-223 of gibbon, 276

Smithsonian Institution, Experiments at, 15 ff., 38

Snapshot, A unique, 264-265

Social traits and government of chimpanzee, 99-105 of gorilla, 231 ff.

Soko, 270

Speech defined, 12

Speech of animals (see also Monkeys, Speech of, and Chimpanzees, Speech of) author’s interest in, 12 grounds of belief in, 12, 13 vocabularies limited, 13 can express what they conceive, 13, 23 development of interest, 14

Spider-monkey, 38

Stanley Pool, 216

Steckelman, Carl, African explorer, 216

Sternum (see Skeleton)

Stories of travelers and writers often untrue, 71-72, 235-236, 261-263, 267, 268, 273

Strohm, Mr. Adolph, trader at Gaboon, 154, 158

Sumatra, 274

Threadbare story, A, 262, 273

Tornado in the jungle, 79 ff.

Translations of native reports, Literal, 269, 270

Troglodytes, 267

Tyimba (village), 144

Under forest, The, 68

University of Toronto Collection, 249

Village pet, A the children’s playmate, 175-178 understood names and commands, 179 brought water and wood, 179-180 brought persons named, 180-181 price double that of a slave, 182

Vocabularies of animals (see Speech of Animals; Monkeys, Speech of, and Chimpanzees, Speech of)

Walker, Dr., revises Wilson’s lexicon of native language, 216

Wallace, Mr. Alfred R., authority on orang, 275

Webber, Mr., keeper of ape at Bellevue his success in training, 198

Wild visitors to the cage, 75 ff., 81-82, 186-190, 252-260 did not usually evince fear, 253 retreated in good order, 253, 255, 258 Moses frightens one away, 254 a gorilla beckons, 255 a narrow escape, 256-258 an exceptional opportunity, 258-259 a brave baby, 260 a gorilla takes his own photograph, 264-265

Wilson, Dr., first missionary at Gaboon wrote lexicon of native language, 216

Wurmb, Baron, 267

Books on Out-of-Door Life

WAYS OF WOOD FOLK

By William J. Long

Fascinating descriptions of animals and birds as seen at play in their homes. Illustrated with 7 full-page engravings on wood from drawings by Charles Copeland and William Hamilton Gibson, and numerous smaller pictures and illustrative initials and head-pieces.

Square 12mo. Cloth. 214 pages. 75 cents.

WILDERNESS WAYS

By William J. Long

A second volume of “Ways of Wood Folk.” Written in the same intensely interesting style that makes its predecessor so popular. With 7 full-page illustrations and numerous illustrative initials and head-pieces by Charles Copeland.

Square 12mo. Cloth. 200 pages. 75 cents.

MOTHER NATURE’S CHILDREN

By Allen Walton Gould

The love and care and mutual dependence of living things, from human beings down to the plants, set in an imaginative framework for children. With 200 illustrations.

Square 12mo. Cloth. 265 pages. $1.25.

BIRD WORLD

By J. H. Stickney and Ralph Hoffman

A charming bird book for young people. With 10 full-page illustrations by Ernest Seton-Thompson, and colored plates from nature.

Square 12mo. Cloth. 214 pages. 75 cents.

FRIENDS AND HELPERS

Compiled by Sarah J. Eddy

Man’s helpers in the animal world and how they may be treated with considerate kindness. With 75 illustrations, many of them from photographs made especially for this book.

Square 12mo. Cloth. 241 pages. 75 cents.

MOTHS AND BUTTERFLIES

By Mary C. Dickerson

A popular book on the life and habits of moths and butterflies. With more than 200 illustrations from photographs and drawings made especially for this book.

Square 12mo. Cloth.

Ginn & Company, Publishers Trade Department 9-13 Tremont Place, Boston