INDEX 
A 
Acoustic Wave Filter, Single Band, G. W. Stewart 93 
Alcohols, See Frog Muscle. 
Alpha Lines, See Tungsten Spectrum. 
Alta, See Solar Surface. 
American Association, Affiliation with 15 
American Science: Address of the President, Nicholas Knight.... 33 
Ames, See Tills. 
Ash, Volcanic, Discovery of, in Iowa, Charles Keyes 49 
B 
Baja California, Batholithic Veinings of Sierra de los Cucaras, 
Charles Keyes 57 
Baldwin, Francis M., Alcohols as Factors Altering Fatigue Processes 
in Frog Muscle 161 
Baldwin and Harrison, See Harrison and Baldwin. 
Baltimore Oriole Census, Katherine Gilmore and H. E. Jaques 131 
Bird Banding and Incidental Studies, Dayton Stoner. 151 
C 
California, See Baja California. 
Catharinaea in Iowa, Notes on, Lucy M. Cavanagh 223 
Cavanagh, Lucy M., Notes on the Genus Catharinaea in Iowa 223 
Ceanothus L. in Iowa, B. Shimek 230 
Clover-Leaf Weevil, See Weevil. 
Common Names for Plants, Use of, B. Shimek 225 
Conard, H. S., and Ellsworth, Winifred, Key to the Families of 
Flowering Plants of Central Iowa 305 
Constitution of the Academy 23 
Corn Oil Cake Meal, See Pigs. 
Cratty, R. I., Dr. Rudolph Gmelin and His Collection of Minnesota, 
Wisconsin and Iowa Plants 247 
Cratty, R. I., Two Additions to Our List of Cruciferae 256 
Crofutt, Charles, Alpha Lines in the “K” Series Tungsten Spectrum.. 117 
Cruciferae, Two Additions to Our List of, R. I. Cratty 256 
D 
Des Moines, See Pleistocene. 
Diaphragm, See Hewlett. 
Dodd, L. E., The Tactual Analog of Stroboscopy 113 
Dolomites, Chemical Study of, Nicholas Knight 37 
Drawing, See Tungsten Wires. 
Dunn, Russell, See Eward and Dunn. 
E 
Ellsworth, Winifred, See Conard and Ellsworth. 
Elm Scale, European, Distribution of, Albert Hartzell.. 201 
Evvard, John M., and Dunn, Russell, Corn Oil Cake Meal for Fatten- 
ing and Growing Pigs. 135 
F 
Fant, A. T., See Sieg and Fant. 
Flowering Plants, See Plants. 
Foliage Leaves, See Leaves. 
Frog Muscle, Alcohols as Factors Altering Fatigue Processes, F. M. 
Bkldwin 161 
