INDEX 683 



Vol. Page 

 Van Tuyl, Francis M., The Salem Limestone and its Strati- 

 graphic Relations in Southeastern Iowa XIX 167 



The Origin of the Geodes of the Keokuk Beds XIX, 169 



A Study of the Cherts of the Osage Series of the Mis- 



sissippian System XIX, 173 



The Lithogenesis of the Sediments XXIII, 163 



The Western Interior Geosyncline and its Bearing 

 on the Origin and Distribution of the Coal Meas- 

 ures XXIII, 166 



See Weller and Van Tuyl. 

 Veblen, A. A., Presidential Address, 1901, The Relation 



of Physics to the Other Material Sciences IX, 21 



Some Improved Laboratory Devices and Apparatus.. IX, 34 



A Study in the Hereditary Transmission of Finger 



Patterns IX, 44 



Vegetation, Effect of Smoke and Gases upon, A. L. Bakke XX, 169 



Forest, See Mississippi. 

 Veination, See Wing Veination. 

 Velocities, Stroboscopic, See Tonoscope. 

 Verink, E. D., A Preliminary Report on the Flora of 



Linn County XXI, 77 



Viburnum in Iowa, T. J. and M. F. L. Fitzpatrick VII, 197 



Viburnum nudum. Fruit of, R. H. Lott and N. Knight. . . . XVI, 145 

 Violaceus laurentius or Pscudomonas janthina. Biology of 



Bacillus, Grace R. Rueda XII, 121 



Vireo, Bell's, Studies of, W. W. Bennett XXIV, 285 



Vocation, See Psychogram. 



Voice, Control of Pitch of, Psychology in, C. J. Knock.. XXII, 337 



Volcanic Dust, See Dust. 



Voltage, Lamp, Effect of Change of, on Vision, Wm. 



Kunerth XXII, 333 



Voltaic Cell, Convenient, L. Begeman XI, 195 



Mutual Induction and the Internal Resistance of, L. 



Begeman XIII, 219 



Vorhies, Fred, An Experimental Investigation of the Re- 

 lation Between the Aperture of a Telescope and the 

 Quality of the Image Obtained by it XX, 283 



W 



Wachsmuth, Charles, Charter Member, L. H. Pammel... XIX, 32 

 Wachsmuth, Charles, Memorial of, S. Calvin and C. R. 



Keyes IV, 13 



Walker, L. R., Bacteriological Investigation of the Iowa 



State College Sewage VIII, 240 



Wall Lake, Vicinity of. Geology of, F. A. Wilder VII, 77 



Walter, Otto, Notes on a Decapod Crustacean from the 



Kinderhook Shale at Burlington XXIV, 119 



Walnut, Black, Variation in, L. H. Pammel and C. M. King XXV, 241 



Ward, Henry B., Greetings from the Illinois Academy XIX, 87 



