682 INDEX 



Vol. Page 

 The Origin of the St. Peter Sandstone XXIV, 171 



The Prairie du Chien-St. Peter Unconformity in 



Iowa XXIV, 177 



Tungsten, Effect of Drawing on, Wm. Schriever XXIV, 235 



X-ray K- radiation of, E. Dershem XXIV, 201 



X-ray Spectrum, E. Dershem XXIII, 191 



(L-series), O. B. Overn XXV, 59 



See Wires. 

 Turkey River Valley, See Terrace. 



Turtle, Loggerhead, Musk Glands in, F. A. Stromsten.. XXIV, 311 



Posterior Lymph Hearts of, P. A. Stromsten XVII, 227 



Turtles, Development of Lymph Channels in, F. A. Strom- 

 sten XVIII, 147 



U 



Udden, Johan August, Some Preglacial Soils V, 102 



Diatomaceous Earth in Muscatine County VI, 53 



The Pine Creek Conglomerate VI, 54 



On the Occurrence of Rhizopods in the Pella Beds 



in Iowa IX, 120 



Pleuroptyx in the Iowa Coal Measures IX, 121 



Cyclonic Distribution of Precipitation XIII, 223 



Unitah Mountains, Grasses of, L. H. Pammel XX, 133 



Vegetation of, L. H. Pammel X, 57 



Unconformity, Prairie du Chien-St. Peter, in Iowa, A. C. 



Trowbridge XXIV, 177 



Union County, See Peat Bed. 



Union County, South Dakota, See Birds. 



Unione Fauna of the Northwest, Derivation of, C. R. Keyes. . I, IV, 25 



Unionidae, Parvus Group of, R. E. Call I, 7. 45 



Unios, Time of Sexual Maturity in, H. M. Kelly , VIII, 81 



Unit Systems and Dimensions, T. P. Hall Ill, 45 



United States, Southwestern, See Lime Creek, Plateau Re- 

 gion. 

 Upper Iowa River, See Pottery. 



Uric Acid Ferments, E. W. Rockwood XV, 99 



Urticaria Factitia in Coe College, W. S. Newell XX, 331 



Ustilaginse of Iowa, H. H. Hume IX, 226 



Utah, See Topaz Crystals. 



V 



Vaccination, See Fever, Typhoid. 



Valley Trains, See Buchanan Gravels. 



Vandivert, Harriett, See Hess and Vandivert. 



Van Hyning, Thompson, Building a Museum XVIII, 155 



Additional Mammal Notes XX, 311 



and Pellett, Prank C, Annotated Catalogue of the Re- 

 cent Mammals of Iowa XVII, 211 



