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Some Peculiarities in Spirogyra Dubia. Paul Weatherwax . 203 



Report on Com Pollination IV. (Final.) M. L. Fisher 207 



Stomata of Trillium Nivale. F. M. Andrews 209 



The Primrose-Leaved Violet in White County. Louis M. Heimlich 213 



Continuous Rust Propagation Without Sexual Reproduction. C. A. 



Ludwig 219 



Correlation of Certain Long-Cycled and Short-Cycled Rusts. H. C. 



Travelbee 231 



Some Species of Xummularia Common in Indiana. Claude E. O'Xeal. . . . 235 



The Genus Rosellinia in Indiana. Glen B. Ramsey 251 



Some Large Botanical Problems. G. C. Arthur 267 



The Alba B. Ghere Collection of Birds' Eggs Presented to the Museum 



of Purdue University. Howard E. Enders 273 



A Note on a Peculiar Nesting Site of the Chirnney Swift. Glenn Culbertson 279 



Notes on Indiana Earthworms. H. V. Heimburger 281 



Notes on Orthoptera and Orthopteran Habitats in the Vicinity of Lafayette, 



Indiana. Henry Fox 287 



Some Insects of the Between Tides Zone. Charles H. Arndt 323 



The Snakes of the Lake Maxinkuckee Region. Barton Warren Everrnann 



and Howard Walton Clark 337 



Stirring as a Time Saver in Gravimetric Analysis. W. M. Blanchard 349 



The Alundum Crucible as a Substitute for the Gooch Crucible. . George 



L. Clark 351 



The Correlation of High School and College Chemistry. James Brown. . . 355 

 The Chemical Composition of Virgin and Cropped Indiana Soils. S. D. 



Conner 359 



Sewage Disposal. Charles Brossman 365 



Tar Forming Temperatures of American Coals. Otto Carter Beriw 373 



Shawnee Mound, Tippecanoe County, as a Glacial Alluvial Cone. Wm. 



A. McBeth 385 



Correlation of the Outcrop at Spades, Indiana. H. N. Coryell 389 



The Paleobotany of the Bloommgton, Indiana, Quadrangle. T. F. Jackson. 395 

 The Flatwoods Region of Owen and Monroe Counties, Indiana. Cl}-de A. 



Malott '. 399 



Mechanical Device for Testing Mersenne Numbers for Primes. Thos. 



E. Mason 429 



Some Properties of Binomial Coefficients. A. M. Kenyon 433 



Radioactivity of Spring Water. R. R. Ramsey 453 



A Tornado at Watertown, South Dakota, June 23, 1914. J. Gladden 



Hutton 473 



A Simple Form of the Carey Foster Bridge. J. P. Naylor 485 



Variation of the Emanation Content of Certain Springs. R. R. Ramsey. 489 

 The Construction of a Rutherford's Electroscope. Edwin Morrison 491 



