12 Proceedings of Indiana Academy of Science 



GEOLOGY AND GEOGRAPHY. 



History of the Lakes near Laporte, Indiana. William Motier Tucker, 

 Indiana University. 

 *Mineral Resources of Indiana. W. N. Logan, Indiana University. 

 Goniobasis Uvescens Menke, a Pleistocene Shell in Furnessville Blowout, 

 Dunes of Porter County. (Illustrated.) Marcus W. Lyon, Jr., 

 South Bend. 

 *Valley-Heads and Sheet-Wash Erosion. Clyde A. Malott, Indiana Uni- 

 versity. 

 *The Role of Sheet-Wash in Erosion. Clyde A. Malott, Indiana Uni- 

 versity. 

 A Review of the Present Knowledge of Fossil Scorpions with the De- 

 scription of a new species from the Pottsville Formation of Clay 

 County, Indiana. (By title.) John Irvin Moore, Owensville. 

 Some Contrasts between Geographic Regions in Indiana. Stephen S. 



Visher, Indiana University. 

 Abandoned Channels in Randolph and Delaware Counties, Indiana. 

 Frederick J. Breeze, Indiana State Normal School, Eastern Division. 

 *The Muncie Esker. Frederick J. Breeze, Indiana State Normal School, 



Eastern Division. 

 *The Entrenched Meanders and Associated Terraces in the Muscatatuck 

 River, near Vernon, Indiana. Burton J. Malott, Technical High 

 School, Indianapolis. 

 fA new Pleistocene Gastropod from Maryland. (By title.) Ernest Rice 

 Smith, DePauw University. 

 Archeology in Posey and Vanderburg Counties, Indiana. Andrew J. 

 Bigney, Evansville College. 



CHEMISTRY AND PHYSICS. 



Chemistry. 



Qualitative Analysis — Tin Group. Ralph W. Hufferd, DePauw Uni- 

 versity. 



Qualitative Analysis — Iron Group. Ralph W. Hufferd, DePauw Uni- 

 versity. 

 *The Normal System in Quantitative Analysis. E. G. Mahin, Purdue 

 University. 



The Effect of Non-Metallic Impurities on Cementite Distribution in 

 Steel. (Illustrated.) G. B. Wil.son, Purdue University. 

 *Some Toxic Soils of Indiana. (lUu.strated.) R. H. Carr, Purdue Uni- 

 versity. (Published under the title "Manganese, Aluminum, and 

 Iron Ratio as Related to Soil Toxicity," in Journal of Industrial 

 and Chemical Engineering, June, 1923.) 



A Study of, and a Modified Method for, Vogel's Reaction for Cobalt. 

 F. J. Allen and A. R. Middleton, Purdue University. 



Thiocyanotocobaltous Acid and Its Alkali Salts. F. J. Allen and A. R. 

 Middleton, Purdue University. 



* Papers starred (*) not published in this proceedings. 

 t Another title substituted in this Proceedings. 



