Part 77

Natural preserves, 34, 38

Naturalist’s Directory, 53

Nature, and nurture, 17 control, 33

Nature’s foresters, 124

Nearctic Hemiptera-Heteroptera, catalogue, 71

Nearctic spiders, 72

Necturus, behavior, 121

Nematocerous Diptera, aquatic, 75 aquatic, stages, 75

Nepa apiculata Uhler, death-feigning, 118

Nervous system, integrative action, 98 origin of, in sponges, 116 regulatory action, 98

Nestling birds, food, 128

Nests, ants, 127 collecting birds’, 58

New Mexico, ecological distribution of animal life in, 148 insects, 148 reptiles, 148

New York, insect galls, 143 State entomologist’s reports, 74

Nomenclature, ecological, for plants, 60 phytogeographical, 22

Non-ecological surveys, 31

Normal, as ideal, 27 conditions, 27 departure from, 98 processes of nature, 26

North Carolina, oyster industry, 112

Notebook, aluminum, 44

Note slips, 37, 44

Note taking, 42, 45, 61

Noxious animals, introducing, 124

Numbering specimens, 50, 51

Numerals, 69

Nurmijärvi Lake, fauna and vegetation, 139

Nurture and nature, 17

Nutrition of Arthropods, affected by cave life, 101

Nymphs, dragon-fly, 76 Mayfly, 76 Zygoptera, keys, 76