Part 27

Heredity a factor in the origin of species, 74 Experiments by C. Ewart, 74

Hewitt, C. Gordon, on the house-fly, 174, 176

Hippocrates, 131

Holt, E. W. L., on Fishery statistics, 58, 62, 68

Home, Sir Everard, 77

Hooke, Robert, 17

Hooker, Sir Joseph, 19

Hopkinson, Mrs., adds new wing to engineering laboratory, Cambridge, 192

Hornell, J., 11, 13, 14, 15

Horses, 73 Bucephalus, 84 Polydactylous, 84 Striped ancestors of, 83 Kathiawar horses, 83 Norwegian ponies, 83 in Mexico, 83

Howard, L. O., on the House-fly, 174, 176

Hubrecht, Professor, Suggested explanations of telegony, 79

Humbert, 4

Humphry, Sir George, 188

Huxley, Professor, 21, 30, 45

Hybrids, 73, 95 Female production of, 75 Hardiness of, 96 Healthiness of, 97 Romulus, 85, 96 Unhealthiness of, caused by strongylus worm, 97 caused by tsetse fly, 97 Zebra, 96

Hydrophobia, First inoculation against, 124

Inbreeding, 91 Effects of, 92 Experiments, 92 in racehorses, 93

India, British Army in, Death-rate from malaria of the, 129, 130

Inoculation, Success of, 123 Saving of cattle due to, 123

Ipnops, Blindness of, 35

Intercrossing, Swamping effect of, 91

Ireland free from malaria, 134

Ismailia, Malaria reduced at, 162

Isobathic curves, 17

Italy, Average mortality in, from malaria, 130

Ixodes pilosus, cause of paralysis in sheep during the early autumn, 173 reduvius conveys redwater fever in Europe, 172

James I., Death of, by a ‘tertian ague,’ 133