INDEX 671 



Vol. Page 

 Ruminants. See Milk. 



Russia, Eastern, Permian Rocks of, C. R. Keyes VI, 229 



See Necks, Volcanic. 



Rust, Alsike Clover, Aecial Stage of, W. H. Davis XXIV, 461 



Ruthven, Alexander G., Contributions to the Herpetology 



of Iowa XVII, 198 ; XIX, 207 



and Wood, Norman A., Notes on a Collection of Mam- 

 mals from Northwestern Iowa XIX, 203 



S 



Sac County, See Mammals. 



Salem Limestone in Southeastern Iowa, F. M. Van Tuyl XIX, 167 



Salix Amygdaloides Ands., -Perfect Flowers of, B. Shimek III, 89 



Salix in Iowa, C. R. Ball VII, 141 



Salter, Raymond C, The Behavior of Legume Bacteria in 



Acid and Alkaline Media XXIII, 309 



Salts, Double, Dissociation of, H. D. Maxwell and N. 



Knight XXIV, 489 



Salvia laiiceolata. Mechanism for Securing Cross Fer- 

 tilization in, G. W. Newton IV, 109 



Sand, See Sylvan Beach. 

 Bars, See Flood Plains. 

 Dunes, See Dunes. 

 Sanders, W. E., The Relative Frequency of Arterio Scler- 

 osis of the Various Arteries XVI, 193 



Sandstone, Prismatic, from Missouri, E. Haworth I, II. 36 



Sandstones Near Iowa City, Age of, C. R. Keyes I, //, 26 



Sangamon between lowan Loess and Illinoian Till, F. 



Leverett : V, 71 



Saprophytes, Iowa, .T. H. Macbride XVIII, 57 



Sardeson, F. W., Remarks on the Loess V, 11 



Satin Spar from Dubuque, A. G. Leonard I, IV. 52 



Savage, Thomas E., A Preliminary List of the Mosses of 



Iowa VI, 154 



Drift Exposure in Tama County VIII, 275 



The Toledo Lobe of lowan Drift X, 123 



A Buried Peat Bed in Dodge Township, Union County XI, 103 



Scale, Oyster-shell, Effect of Low Temperature on, R. L. 



Webster ■ . XXI, 8 



Tempered, Device for Demonstrating, L. B. Spinney.. XXII, 327 

 Schaeffer, Charles A., Charter Member, L. H. Pammel.. XIX, 36 



Schlaback, Carl Edward, Memorial of, L. H. Pammel VII, 20 



Schriever, Wm., Effect of Drawing on the Density and 



Specific Resistance of Tungsten XXIV, 235 



Science, History of. Does it Have a Place in the College 



Curriculum? Presidential Address, 1917, L. S. Ross XXV, 33 

 Local Problems in. Presidential Address, 1888, H. Os- 



born I, /, 19 



Modern, Influence of, on Formation of Ideals, Presi- 



