SUBJECT INDEX 
557 
Page 
Rodents, Iowa, Notes on, Dayton Stoner 353 
Salts, Double, Dissociation of, Harold L. Maxwell and Nicholas 
Knight 4S9 
Snake, Some New Endoparasites- of, Ti-iesle T. Job 315 
Squalus Acanthias , Analysis of Cranial Ganglia of, Sally P. 
Hughes 295 
St. Peter Sandstone, Origin of, Arthur O'. Trowbridge 171 
Stroboscopic Effect, the, L. E. Dodd 221 
Succinic Acid, Solubility and Heat of Solution of, in Water and the 
Paraffine Alcohols, H. E. Fowler and J. N. Pearce 523 
Tellurium, Thermal Conductivity of, Arthur R. Fortsch 213 
Tungsten, Effect of Drawing on Density and Specific Resistance of, 
Wi. Scheiever ... 235 
Tungsten, X-Ray K-Radiation of, Elmer Dershem 201 
Tungsten Wires, Certain Elastic Properties of, L. P. Sieg 207 
Waterworks Laboratories, Jack J. Hinman, Jr 501 
White Sweet Clover, Melilotus alba, Notes on, Walter E. Rogers.. 415 
White Water Lily of Clear Lake, Iowa, Henry S. Conard 449 
Yangtze River, China, Observations on Erosion History of, C. L. 
Foster 127 
Zincite-Copper Contacts, Effect of Hydrogen Sulphide on Unilateral 
Conductivity of, R. B. Dodson 241 
