INDEX. 



PAQE, 



Almy, F. F. , Action of coherers when subjected to direct electromotive 



force 49 



Ammonia free water, preparation of, for analysis 112 



Amphiuma , young, membrane bones in skull of 69 



Analyses of Sioux City water 122 



Asiei el/a hernisphcsvica 42 



Bailey, B. H. , Duck Hawk, in Iowa 93 



Beardshear, W. M. „ 22 



Biatora decipiens .... 43 



Chemical composition of nuts used as food 108 



Cherts , genesis of 103 



Coherers, action oE, when subjected to direct electromotive f roe 49 



Committee on pure food law, report of 19 



Conocephalus conicns 42 



Constitution of academy .... 9 



Cook, A. N. , Preparation of Phenyl ether ■ 113 



bioux C ity water supply 122 



Correlation , geologic .,.,..... 105 



Duck Hawk in Iowa 93 



Ecological notes on vegetation of the Uintah mountains 57 



Evolution and heredity, some problems of 26 



ta CO Peregrinus Anatmn 93 



Fitzpatrick, M. F. L. , Scrophulariacea; of Iowa 136 



Fitzpatrick , T . J . , Scrophulariaceae of Iowa 136 



Flood plains, accretion of, by means of sand bars • . 54 



Genesis ot certain cherts 103 



Geologic correlation ... K5 



Gray, C. E., Preparation of amraon'a tree water for water analysis .... 112 



Great Horned Owl 93 



Green river basin , flora of GO , 61 



Hadden, David E. , Solar surface during the past twelve years 74 



Heredity and evolution , some problems of , 26 



Hess, Alice W. , Chemical composition of nuts used as food 108 



lowan drift, Toledo lobe of 123 



Keyes, C. R., Comparative values of different methods of geologic cor- 

 relation in Mississippi basin = 105 



Genesis of certain cherts ■ . 103 



Occurrence of minute quantities of metalliferous minerals 



in rocks 99 



13 IAS (177) 



