INDEX 



205 



Musca domestica, 47 

 Muskrat, 137 

 Mussarama, 67 

 Mussel, fresh- water, 153 

 — , marine, 24 

 Myiarchus cinerascens , 48 

 Mynah, 54, 55 

 Myrmica scabrinodis , 51 

 Mytilus, 24, 29, 45 



Natural history societies, i, 2 

 — selection, 41 et seq. 

 Nematodes, 81 

 Neuroterus lenticularis , 128 

 New Hebrides, coral reef in, 15 

 Newt, crested, 115, 153 

 — , smooth, 115 

 Niches, 63 

 Nicholson, 174, 147 



NiEDIECK, 96, y2 



Oak moths, 119, 128 



Obelia, 29 



Olofsson, 123 



Opossum, 112, 113 



Optimum density of numbers, 113 



Ostrich, 65 



Otus asio gilmani, 48 



Owl, elf, 48 



— , screech, 48 



— , short-eared, 119 



— , snowy, 123 



Owls, 139 



Ox-bow, 151 



Oxford water works, 37 



Oxshott Common, 22, 66 



Paddy, 81 

 Painted lady, 156 

 Palcemonetes varians, 25 

 Palmer, 46 

 Panther, 46 

 Pantula flavescens , 157 

 Paramecium, 25, 39 

 Parasitoid, 79 

 Parker, go 



Parthenogenesis, 158, 167 

 Partridge, black, 46 

 — , common, 11 

 Passenger pigeon, 105 

 Patella cenea, 60 

 Pearl, 90 

 Pearson, 61 

 Pempelia subornitella, 51 



Penguin, Adelie, 70, 105 



— , emperor, 123, 153 



— , gen too, 81 



Percival, 56, 67, 70, 105, 141, 14s, 



12 

 Perdix perdix, 11 

 Peridinian, no 

 Perkins, ys 

 Pettersson, 159, 133 

 Phasianus colchiais, 1 1 

 Pheasant, 11 

 Phenology, 175 

 Phylloscopus collybita, 40 



— trochilus, 40 



Physiology, great knowledge of un- 

 necessary, 39 

 Phytomonas davidi, 77 

 Picea obovata, 157 

 Pieris brassicce, 39, 115 



— rapce, 39, nS 

 Pig, 46 



Pigeons, homing, 160 



Piper, 49 



Plague, bubonic, 52, S3> 78, 84 



Plagues of animals, 141 et seq. 



Plankton, 13, 58, 70, 90, 104 



Plants, influence of on animals, 8, 



9, 32, 47, 48 

 Pleuroxus aduncus, 154 

 Plumatella, 154 

 Podiceps cristatus, 74 

 Polychaetes, 129 

 Polj^zoa, 154 



Pontosphcera Huxley i, no 

 Populus tre^nuloides, 48 

 Powell, yo 

 Prawns, 25 

 Priestley, 121 

 Protozoa in soil, 129, 130 

 Pseudotsuga taxifolta, 30 

 Ptarmigan, 11 

 Pygoscelis papua, 81 

 Pyramid of numbers, 68 



Quail, desert, 46 

 Quercus robur, 12 



Rabbit, 51, 52, 66, 75, 89, iii, 135, 



139 

 — ,jack, 135 

 — , snowshoe, 186 

 Rain, 94 



Rats, 52, 53, III, 114 

 Rattus norvegicus, 53 

 — rattus, S3 



