SUBJECT INDEX 



639 



Yerba— "^ 



rosario, culture, (34) 736. 



sante mealy bug, notes, (29) 455. 

 Yew — 



culture experiments, (26) 141. 



diseases, notes, (26) 853. 



Pacific, density and porosity, (32) 47. 

 Yezosiphum n.g., description, (40) 60. 

 Yoghourt— 



analyses, (26) 80. 



bacillus, cultivation, (27) 765. 



bacillus, studies, (35) 278. 



bacillus, tests of strains, (34) 574. 



bacteriology of, (29) 279, 376, 377. 



bread, notes, (27) 765. 



manufacture, (28) 177. 



methods of analysis, (31) 114. 



preparation, (29) 376, 377. 



preparation and use, (27) 75; (34) 474. 



preparations, notes, (28) 278. 



preparations, supervision of trade in, (28) 374. 



studies, (29) 59. 



use against calf dysentery, (26) 682. 

 Yohimbine, nature and use, (26) 580. 

 Yokohama beans^ 



culture, (32) 226. 



yields, (29) 224. 

 Yolk- 

 formation, peculiar, (26) 573. 



nucleus, structure and origin, (28) 766. 

 Yorkshire fog, notes, (30) 434. 

 Yothers' Formula IV, tests, (29) 262. 

 Young, J. R., biographical notes, (40) 869. 

 Yponomeuta — 



malinella, see Apple ermine moth. 



spp., notes, (29) 252; (36) 549. 



spp., studies, (28) 557. 

 Ypophaemyia malacosomae n.g. and n.sp., descrip- 

 tion, (36) 654. 

 Ypsolophus ligulellus, see Palmer worm. 

 Yttrium, effect on permeability, (34) 34. 



culture in Cuba, (38) 538. 



elata as emergency forage, (39) 772. 



elata as silage crop, (38) 471. 



filamentosa, saponin of, (37) 9. 

 Yuccas— 



of Durango, Mexico, (31) 132. 



use in feeding, (40) 276, 277, 471. 

 Yukon River basin, hydrology, (32) 382. 

 Yuma — 



Experiment Farm, work, (39) 497. 



Experiment Farm, report, (40) 494. 



project, irrigation requirements, (40) 484. 

 "Zaaidams" in irrigation, (31) 782. 

 Zacate, notes, (26) 361. 

 Zacaton— 



as paper-making material, (34) 318. 



description and culture (37) 141. 

 Zaghouaniaceae, monograph, (36) 647. 

 Zagrammosoma flavolineatum, notes, (36) 655. 

 Zaitha flumineum, death feigning, (27) 457. 

 Zaleptopygus obereae n.g. and n.sp., description, 



(29) 562. 

 Zalophothrix mirum^ 



notes, (28) 452. 



parasitic on black scale, (26) 556. 

 Zanthoxylum spp., notes, (30) 145. 

 Zaommoencyrtus submicans n.g. and n.sp., de- 

 scription, (35) 761. 

 Zapupe — 



binder twine from, (27) 534. 



fiber, strength of, (29) 313. 



manufacture of alcohol from, (26) 415. 

 Zarzabacoa, culture, (34) 736. 

 Zatropis deuterus n.sp., description, (26) 352. 

 Zea— 



caragua, analyses, (31) 863. 



ramosa and Z. tunicata, hybrids of, (37) 536. 



tunicata and Z. ramosa, hybrids, (38) 525. 



caterpillar in Nova Scotia, (39) 160; (40) 57. 

 horse hybrids, skull characters, (38) 65. 

 hybridization experiments, (30) 270. 

 hybrids, utilization, (26) 369. 

 in pleistocene fauna of France, (27) 468. 

 mountain, hybrid, notes, (26) 269. 

 mountain, hybrids, fertility, (26) 163. 



Zebras — 



teeth, studies, (27) 674. 

 treatise, (28) 269. 

 utilization, (26) 369. 

 Zebroids, fertility of, (26) 163. 

 Zebu hybrids, notes, (27) 872. 

 Zebu-cattle hybrids- 

 characteristics, (32) 669. 

 heredity in, (28) 68. 

 measurements, (27) 672. 

 notes, (31) 664. 

 Zebus — 



and bantengs, zoological relationship, (34) 466. 

 crossing with cattle, (26) 472; (29) 369, 660; (30) 



567; (33) 870. 

 digestion experiments, (29) 69; (30) 568. 

 half-bred, milk production, (30) 74. 

 hybridization experiments, (28) 670. 

 in Brazil, (33) 469. 



Formosa and India, measurements, (28) 365. 

 Jamaica, (27) 172. 

 Philippines, (32) 260. 

 Tunisia, (33) 469. 

 introduction into Texas, (28) 874. 

 measurements, (27) 672. 

 piroplasms of, (26) 782. 

 value for tick-infested regions, (38) 69. 

 Zein— 



as affected by gastric juice, (28) 66. 

 effect on wheat gluten, (26) 67. 

 in nutrition and growth, (31) 559. 

 lysin content, (29) 408; (31) 559. 

 ~ nutritive value, (31) 264; (35) 368. 

 proteoses, physiological action, (34) 71 

 utilization, (30) 316. 

 Zei.sm, similarity to pellagra, (31) 464. 

 Zeitschrift fiir — 



Analytische Chemie, index, (30) 117. 

 Angewandte Chemie, index, (26) 306; (29) 501. 

 Zele spp. in Great Britain, (32) 454. 

 Zelia— 



vertebrata, notes, (35) 259. 

 wildermuthii n.sp., description, (35) 259. 

 Zelleria haimbachi n.sp., description, (33) 748. 

 Zelotypa fungicola n.sp., description, (33) 360. 

 Zenillia pexops, life history, (32) 352. 

 Zeolite — 



artificial, as source of potash, (37) 322. 

 as source of potash, (29) 625; (36) 728. 

 " potash, solubility, (34) 328. 

 Zeolites- 

 absorption of phosphoric acid by, (28) 518. 

 commercial, analyses, (40) 588. 

 fertilizing value, (29) 211. 

 relation to ammonia absorption and nitrifica- 

 tion, (39) 520. 

 soil, properties of, (30) 23. 

 Zephyranthes-Cooperia hybrids, description, (29) 



341. 

 Zeugophora scutellaris, notes, (40) 758. 

 Zeuzera pyrina, see Leopard moth. 

 Zicrona caerulea, notes, (30) 459. 

 Zignoella— 



garciniae, notes, (35) 153. 

 nobilis n.sp., notes, (37) 148. 

 Zinc- 

 antagonism to alkali salts, (39) 619. 

 arsenate, insecticidal value, (34) 60. 

 arsenite— 



analyses, (27) 756; (31) 49, 142; (38) 643. 

 effect of soap on settling, (26) 354. 

 insecticidal value, (27) 161; (29) 253; (32) 



158, 846. 

 tests, (30) 156. 

 as growth stimulant for hemp, (33) 432. 

 assimilation by Aspergillus niger, (30) 523, 630, 



824; (31) 224. 

 chlorid — ■ 



antiseptic and germicidal value, (37) 176. 

 as timber preservative, (26) 644; (38) 248 

 detection in wood, (26) 242. 

 effect on starch ferments, (27) 109, 

 use in soil disinfection, (33) 250. 

 compounds- 

 effect on plant growth, (32) 121 

 toxicity toward plants. (33) 327 

 detection in water, (34) 410. 

 determination, (40) 610. 



