INDEX OF SUBJECTS. 



1011 



Zein — Page. 



in nutrition and growth 559 



lysin content 559 



nutritive value 264 



Zeism, similarity to pellagra 464 



Zeuzera pyrina. (See Leopard-moth.) 



Zinc— 



arsenite, analyses, Me 49 



arsenite, analyses, N.J 142 



assimilation by Aspergillus niger 224 



pipe, use in water supplies 189 



salts, effect on ammoni&cation and nitri- 

 fication in soils 120 



salts, effect on wheat 218 



Zinc— Continued. Page. 



sulphate, effect on growth of plants 325 



Zinnias, cut, preservation 837 



"Zipangu," analyses 759 



Z irconia, distribution in loam soils 618 



Zirconium in soils, U.S.D.A 720 



Zodiacal light, Birkeland's theory, U.S.D.A.. 615 



Zoocecidia of Switzerland, catalogue 656 



Zoogeogiaphical elements of contiaental 



regions 452 



Zoology — 



bibliogi-aphy 56 



Canadian, bibliography 648 



studies 277 



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