INDEX. 137 



Page 



I'ickei'el-wccd l';iniily ^" 



IMg-niit ■^■'• 



I'igweed 4.',. 4(; 



I'liiipint'lla ■'' 



I'ink family ■*^' 



Pinweed •'^O 



Planorbis tnmcatus. Miles I'J-i 



Plantaginacea' ^^ 



Plantago 63 



IMantaln family 63 



Plants of Detroit, siiniinary ^^'5 



Pleurisy-root '^'^ 



I'lums 5- 



I'lum scale, New York 82 



Pneumaria ^'>^ 



Poa 37 



Podoijhyllum 48 



I'oison hemlock 57 



Poison oak 54 



Pokeweed family 46 



Polansia 50 



PolemoniaceiE " 60 



Polygala 54 



Polygalaceae 54 



Polygonacete 45 



Polygonatum 41 



Polygonum 45 



Polypodiacese 33 



Pondweed family 34 



Pontederiacesp 40 



Poplar 43 



Populus 43 



Porteranthus 50 



Portulaca 40 



PortulaeaceiB 40 



Potamogeton 34 



Potato 62 



Potato family 61 



' Potentilla 51 



Prairie rose 51 



Precipitation of rain on lofty mountains 98-0!) 



Prehistoric ethnology of the Thompson river region S-10 



Prenanthes 08 



Presidential address 24-30 



Prickley-ash 53 



Prickly-pear. Opuntia. in Michigan, reference 6 



Primrose family 58 



Primulacem 58 



Prince's feather ■ 45 



Protozoa, reproduction in 12, 1.3 



Prunus 52 



Puberty rites of Indians 8 



Pulvinaria. characters of 82 



Pumpkin 64 



Purslane family 46 



Pussley 46 



Pyrola 58 



Pyrolacese 58 



18 



