INDEX 635 



Vol. Page 

 Ecology, See Loess. 



Egg, Desiccated, Bacterial Content of, L. S. Ross XXI, ;]3 



Eggs and Larvae, Amphibian, Study of, A. Kuntz XVIII, 145 



Elastic Properties of Certain Substances, K. E. Guthe.. XV, 147 



Electricity, Standards of, K. E. Guthe XIII, 233 



Electrolytes, Electrical Conductivity of, J. N. Pearce.... XXI, 131 



Electron Atmospheres, See Brown, F. C XX, 271 



Charge of. Determination of, L. Begeman XV, 157 



Electrons, Absence of Liberation or Absorption of, during 



Change of State, L. E. Dodd XXII, 307 



Elements, Graphic Representation of Properties of, T. P. 



Hall II, 141 



Eleodes in Iowa, H. P. Wickham VII, 59 



Elevation of Iowa, See Iowa. 



Elodea, Staminate Flowers of, R. B. Wylie XVII, 80 



Embryology of Flowering Plants, Paraffine Method Ap- 

 plied to Study of, H. W. Norris I, IV, 104 



Emmet County, See Flora 



Empria fragariae and E. viaculata. See Slugs. 

 Encrinurus, Variation in Position of Nodes on Axial Seg- 

 ments of Pygidium, Wm. H. Norton Ill, 79 



Ende, Carl, See Andrews and Ende. 



Endoparasites, See Snake. 



Engine, Ruling, for Making Zone Plates, W. M. Boehm. . IX, 181 



Engineering, Experimental, at Iowa Agricultural College, 



G. W. Bissell I, 7F, 16 



Illuminating, A. H. Ford XVIII, 119 



Entomology, See Food. 



Entomostraca from Okoboji Region, F. A. Stromsten. . . . XXIV 309 



Iowa, L. S. Ross Ill, 170 



Enzymes, See Amino Group. 



Eolation, Depositional Phases of, C. R. Keyes XVIII, 101 



Epimyus norvegicus, See Rat. 



Epinephrin, Action of, J. T. McClintock XVIII, 125 



Eragrostis, Leaves of, C. R. Ball IV, 138 



Erosion, Folic, See Plateau-plains. 



Post-Kansan, M. M. Leighton XXIV, 83 



See Rocks. 

 Erwin, A. T., Late Potato Blight Epidemics in Iowa as 



Correlated with Climatic Conditions XXIII, 583 



Erysiphacese, Iowa, J. P. Anderson XIV, 15 



Esker, Illinois, Flora of, B. Fink XIII. 59 



Eskers, Formation of, A. C. Trowbridge XXI, 211 



Ether, Diphenyl, Derivatiyes, A. N. Cook VIII, 94 



Phenyl, Preparation of, A. N. Cook X, 113 



Ethyl Iodide and Silver Nitrate, Reaction Between, J. N. 



Pearce and O. M. Weigle XIX, 137 



Evaporation from Free Water Surfaces, A. G. Smith XVI, 185 



in Limited Areas, Variation in, D. H. Boot XXI, 125 



