SUBJECT INDEX 



433 



Phosphoric oxid— 



in corn meal, (33) 752. 

 solubility in mixed fertilizers, (38) 519. 

 Phosphorite — 



as affected by calcium carbonate, (26) 428, 527 

 deposits in Russia, (35) 521; (38) 817. 

 fertilizing value, (29) 318; (37) 323. 

 Kasan, fertilizing value, (34) 330. 

 soil suitable for, (26) 623. 

 Phosphorites— 



as affected by ammouium salts, (29) 624; (35) 



816. 

 assimilation by plants, (27) 340. 

 effect on soils, (26) 30. 

 from Sengilei, (34) 329. 

 Russian, superphosphates from, (27) 627. 

 Phosphorus — 



assimilation by Aspergillus niger, (26) 203. 

 assimilation by lower algae, (28; 35. 

 availability in soils, (31) 618. 

 casein, biological significance, (27) 169. 

 compounds — 



assimilation by ruminants, (31) 71. 

 availability in rations for ruminants, (26) 



568. 

 effect on milk, (26) 775. 

 effect on milk secretion, (27) 176. 

 in animal metabolism, (32) 601, 858. 

 in animal nutrition, (29) 869. 

 nutritive value, (26) 565, 7t)5; (27) 775. 

 of cottonseed meal, (37) 502. 



cottonseed meal and wheat bran, (29) 



804. 

 seeds, (26) 501. 

 serum, (35) 714. 

 compounds, organic — 



and inorganic, metabolism of, (33) 462. 



decomposition, (26) 501. 



hydrolysis bv dilute acid and alkali, (31) 



805. 

 hydrolysis by enzyms, (29) 166. 

 of feeding stuffs, separation, (27) 615. 

 of wheat bran, (28) 17, 505; (33) 11, 464, 802. 

 therapeutic value, (33) 664. 

 compounds, water-soluble, extraction from 



plants, (27) 407. 

 concentration in surface soil, (31) 720. 

 conservation in urine, (27) 500. 

 deficiency, effect on bones, (32) 561. 

 deficiencv, effect on oat plant, (40) 324. 

 determination, (27) 503; (33) 803; (34) 409, 805; 



(39) 311; (40; 112. 

 determination — 



as phosphoric acid, (28) 203. 

 citro-molvbdate method, (28) 312. 

 in ash, (36) 204. 

 bone ash, CW) 805. 

 feces, (39; 675. 



fertilizers and feeding stuffs, (32) 805. 

 foods, (29) 799. 

 milk, (27) 208. 

 plant materials, (35) 613. 

 plants, (26) .'iOl. 



presence of sulphuric acid, (34) 112. 

 proteins, (26) 501. 

 soil extracts, (34) 10. 

 • soils, (27) 499; (34) 806; (36) 413, 612; (38) 

 205. 

 urine and feces, (39) 806. 

 vegetable products, (27) 410. 

 wheat, (40) 507. 

 diffusible, in cow's milk, (34) 271. 

 distribution in — 



blue grass soils, (.36) 424. 

 prairie surface soils, (36; 514. 

 striated muscle, (32) 561. 

 effect on — 



alfalfa and other legumes, (37) 828. 

 Aspergillus spp., (29) 825. 

 bacterial activity of soil, (39) 325. 

 chloroijhyll formation, (35) 435. 

 development of animals, (30) 465. 

 grapes, (31; 339. 

 growth of bones, (31) 69. 

 nutrition and growth in plants, (28) 225. 

 wheat, (39) 127. 

 for alfalfa, (30) 335. 

 for Missouri soils, (33) 212, 213, 214, 215. 



Phosphorus— Continued. 



for South Dakota soils, (29; 728. 

 importance in animal nutrition, (31) 663. 

 in animal oiganism, (30) 6G9; (.33) 167. 

 blood of lactating cows, (37) 308. 

 casein, (32; 60ri. 



cottonseed meal, forms, (27) 611. 

 feeding stuffs, (30; 867. 

 flour, (26) 2f 0. 



foods, relation to nutrition diseases, (26) 264. 

 granitic soils, (37) 522. 



growing pigs as affected by protein con- 

 sumption, (32) 72. 

 Indian foodstuffs, (27) 461. 

 matiere noire, studies, (26) 814- 

 seeds, variations in. (27) 108. 

 soils, effect on composition of turnips. (29)417. 

 soils, solubility, (39; 821. 

 soils, studies, (28) 815. 

 turnip roots, relation to availability of soil 



phosphorus, (38) 326. 

 wheat and flour, (30) 362. 

 inorganic — 



determination, (32) 299; (34) 315. 

 determination in plant substances, (28) 21. 

 determination in turnips, (26) 527. 

 in milk, (37) 208. 

 metabolism of, (30) C69. 

 lecithin, determination in macaroni, etc., (33) 



14. 

 lipoid and acid-soluble, determination in serum, 



(34) 613. 

 lipoid, in animals, (33) 69. 

 loss in curing hay, (26) 574. 

 manure as source of, (39) 427. 

 manuring, effect on composition of turnii)S,'(26) 



527. 

 metabolism — 



in Aspergillus niger, (30) 727. 

 in 14-vear old boys, (30) 262. 

 of. (30) 465. 

 of lambs, (33) 761. 

 of women, (40) 174. 

 on a' rice and vegetable diet, (26) 865. 

 nutrition of plants, notes, (34) 805. 

 of citrus grove soils, (39) 421. 

 of different sources for oats and lupines, (31) 733. 

 organic — 



and inorganic, nutritive value, (30) 97; (31) 



563. 

 determination in soils, (26) 803; (28) 29. 

 from inorganic phosphates, (26) 772. 

 in soils, (36) 212. 

 pentoxid, determination, (36) 713. 

 physiology of during growth, (27) 169. 

 phvtin, determination in plant products, (38) 



11. 

 phytin, of feeding stuffs, (40) 772. 

 phytin, utilization by pigs, (39) 675. 

 removal from soil, (39) 517. 

 requirement of barley and oats, (37) 34. 

 resorption and retention by the intestine, (28) 



865. 

 retention in growing pigs, (28) 469. 

 soil, as affected by heat and oxidation, (27) 122. 

 soluble, as affected by bacteria, (26) 723. 

 supply of United States, (31) 295. 

 Phosphotungstate precipitate of yeast preparation, 



(35) 311. 

 Phosphotungstic acid, precipitating with, (26) 511. 

 Phosphotungstic-phosphomolybdic compounds as 



color reagents, (28) 804. 

 Photochemical effects from mercury vapor lamp 



and sunlight, (29; 218. 

 Photogiammetry, application to forestry, (26) 141. 

 Photometer for plant studies, (39) 524; (40) 521. 

 Photometric aiip.lysis. review of investigations, (34) 



202. 

 Photomicrography of parasites, (29) 478. 

 Photosynthesis— 



and low temperatures, review of literature, (32) 



640. 

 artificial, stmhes, (33) 727. 

 as affected by incomplete culture solution, (38) 



523 

 dynamic aspects, (40) 223. 

 in cotton, studies, (27) 732. 

 plants, (27) 427. 



