342 INDEX. 



oxide of iron, protoxide in venous blood, peroxide in arterial, 255 et 

 seq. All parts of the arterial blood contain oxygen, 164, 165, 254, 

 259. 



P. 



PEARS. Analysis of starch from unripe, 286. 



PEASE. Form part of the diet of soldiers in Germany, 272, 276. 

 Abound in vegetable caseine, 46. Analysis of pease, 277 ; of starch 

 from pease, 285. 



PEPYS and ALLEN. Their calculation of the amount of inspired oxy- 

 gen, 271. 



PEROXIDE or IRON. Probably exists in arterial blood, 255 et seq. 



PFLUGER. His analysis of the gas obtained by puncture from the ab- 

 domen of cattle after excess in green food, 299. 



PHENOMENA of motion in the animal body, 185 et seq. 



PHOSPHATES. See Bones. 



PHOSPHORIC ACID. See Acid, Phosphoric. 



PHOSPHORUS. Exists in albumen and fibrine, 39, 43, 120. It is not 

 known in what form, 116 et seq. Is an essential constituent of 

 nervous matter, 174, 180. 



PHOSPHURETTED HYDROGEN. Occurs among the products of the pu- 

 trefaction of fishes, 180, 181. 



PICROTOXINE. Contains nitrogen, 168 (note). Its analysis, 313. 



PLANTS. Distinguished from animals by fixing carbon and giving out 

 oxygen, 2, 202; by the want of nerves and of locomotive powers, 3. 

 Their capacity of growth almost unlimited, 219. Cause of death in 

 plants, 203. 



PLAYFAIR, DR. L. His formula for blood, 127. His analysis of 

 faeces, of pease, of lentils, of beans, 273; of flesh and of blood, 304 ; 

 of roasted flesh, 312. 



POISONS, VEGETABLE. Always contain nitrogen, 167 et seq. Differ- 

 ent kinds of poisons, 161. Theory of the action of Prussic acid and 

 of sulphuretted hydrogen, 262. 



POLYMERIC BODIES, 99. 



POTASH. Essential to the production of caseine or milk, 156. 



POTATOES. Amount of carbon in, 275. They form part of the diet 

 of soldiers in Germany, ib. Analysis of, 275 ; of starch from, 286; 

 of solanine from the buds of germinating potatoes, 313. 

 PREVOST and DUMAS. On the frequency of the pulse and respira- 

 tions, 281. 



PRODUCTS. Of the metamorphosis of tissues found in the bile and 



