538 IOWA ACADEMY OF SCIENCE Vol. XXVI, 1919 



D 



Page 



Davis, W. H., Mammoth Clover Rust 249 



Dill, Homer R., The Correlation of Art and Science in the Museum... 85 

 Dodd, L. E., Some Structural Features of Selenium Deposited by Con- 

 densation from the Vapor State Above the Melting Point 501 



The Sublimation Curve for Selenium Crystals of the Hexagonal 



System 509 



Superposed Stroboscopic Velocities 513 



Dolomites, Some American, Burleigh B. Reed and Nicholas Knight 377 



Dry Run, A Typical Prairie Stream, An Ecological Study of. I, the 



Fishes, E. Laurence Palmer Ill 



E 

 Ensign, Evelyn, Rosa piatincola Greene in Iowa 303 



F 



Fern Flora of Nebraska, T. J. Fitzpatrick 311 



Flood Plains, Note on Conditions at the Head of, John L. Tilton 391 



Flora of Mitchell County, Flora May Tuttle 269 



Fishes, See Dry Run. 



Fitzpatrick, T. J., The Fern Flora of Nebraska 311 



Formaldehyde, See Wheat. 



Fortsch, Arthur R., The Effect of Temperature on Resistance and Spe- 

 cific Resistance of Tellurium Crystals 523 



G 



Gabrielson, Ira N., The Birds of Marshall County, II 47 



Grass-hopper Control Work in Iowa, H. E. Jaques 133 



Grasses, Native, See Puccinia graminis. 



Gravel Deposits, Leached, in Louisa and Washington Counties, Inter- 

 pretation of, W. H. Schoewe 393 



Guthrie, J. E., The Occurrence of Warts on Cottontail Rabbits 157 



H 



Halsted, Byron D., Memorial of, L. H. Pammel 31 



Helicina occulta Say, Further Notes on, B. Shimek 385 



Herpetocrinus from the Silurian of Iowa, A. O. Thomas 481 



Horns, Conical, The Action of, G. W. Stewart 521 



Independence Shale Near Brandon, A. O. Thomas 485 



Insect Habitats in the Tropics, Some Interesting, Dayton Stoner 129 



Iowa Geology, A Century of, Charles Keyes 407 



lowan-Wisconsin Border, The, E. J. Cable 399 



Iris, Hybridization in, M. Louise Sawyer : 363 



J 



Jaques, H. E., Grass-hopper Control Work in Iowa 133 



