/ VDEX 



31 



/,' /< r< nces 



Prairie dog's, harmful mam- 

 mals 160 



Prairies, suited to raising <>f 



corn 318 



Praying- mantids, a family of 



Orthoptera Jit 



Predigested foods, use of . . 181 

 Pre-molar teeth, discussed . . 167 

 Preparation of foods, dis- 

 cussed 177 



Preservatives, list of . . . . 348 



Preserved substances . . . 347 



Preventable diseases . . . 234 

 Prevention, of communicable 



diseases '_'•">'. » 



of plant diseases 320 



Primary root of bean . . . 267 



Prisoners, number of ... . 257 



Proboscis of butterfly . . . 29 



Propolis, use of, by bees . . . 37 

 Prop roots of corn (fig.) 278, 280 

 Protective coloration. of 



birds 139 



of grasshopper 14 



of moth (fig.) 33 



Proteid substances in flour. 



source of food for yeast plant 358 



Protein, a class of foods . . . 169 



in bean 317 



product of photosynthesis . . 276 



stored by beau *_'»i". 



Prothallium of fern, a gameto- 



pbyte 371 



Prothorax of grasshopper . Hi 



Protonema of moss .... : 165 

 Protoplasm, of cell . . . . 5,208 



of pollen grain :'><><) 



Protozoa, cause of disease . . 237 



classified <"> 



flagellate (fig.) 52 



number of kinds of .... •'. 



resemblance to bacteria . . . 343 



simplest animals 15 



Protozoa and alcohol . . . 



Protozoan cell, described . . 16 



Protozoan culture .... 19 

 Psalterium, division of stomach 



of sheep (fig.) 154 



Pseudopodium of amoeba 17 



Pteridophytes, classified . • 7 



an to pugi 



Pteris, described (t ... 



stein (fig.) 



Ptomaines, in Ice cream . . 

 Public institution 



tion of servants for . . . 244 

 Puff ball, example of Coi 



(fig.) : 



Bpores of, " Bmoke " 



Puffins. nest of 142 



Pulmonary tuberculosis, dis- 

 cussed 



Pulse, caused i>\ beating ol 



heart 



Pulse, members of bean family, 

 tnenl loned in Bible .... 

 Pulse family, characterise 



of 



discussed 



foods furnished i>> 



li^t of plants of 



\ alue to soil of plants of . 

 Pumpkin, example of pepo ■ . 

 Pumpkin seed, a f i — 1 * (fig.) . . 

 Pupa, a Btage in metamor- 

 phosis of insects 



description of 



of cecropia i tiu r .) 



of codling moth (fig.) . • • • 

 Pure culture, defined .... 



Of J east 



Pure food laws 



Pure milk, cosl of producing 

 Purple finch, at hemp and mil- 

 let station 1 18 



Purple sea urchin .71 



Pyloric valve of stomach . . 

 Python, a constrictor .... 



MX) 



311 

 104 



18 

 18 



18 



180 



Q 



