28 
22. 
23. 
24. 
25. 
26. 
Fede 
28. 
Proceedings of Indiana Academy of Science 
Crop Rotation as Affecting Nitrate Formation. 10 minutes. I. L. 
Baldwin, U. L. Coble, and J. W. Chamberlain, Purdue University. 
Geology and Geography. 
Archaic Investigations, 1921. 5 minutes. W. N. Logan, Indiana 
University. 
The Structural Conditions in the Eastern Indiana Oil Field. 10 
minutes. W. N. Logan. 
A Subterranean Cut-off. 5 minutes. Clyde A. Malott, Indiana Uni- 
versity. 
Lost River and Its Subterranean Drainage. 15 minutes. Clyde A. 
Malott. 
The Decline of Lakes near Laporte, Ind. 15 minutes. W. M. 
Tucker, Indiana University. 
A Concretionary Zone in the Knobstone. Lantern. 10 minutes. 
W. M. Tucker. 
BIOLOGICAL SCIENCES—ASSEMBLY ROOM. 
Botany (Including Bacteriology) 
Saprolegnia. 5 minutes. F. M. Andrews, Indiana University. 
Some Abnormal Forms of Spirogyra. 5 minutes. F. M. Andrews. 
Trillium Nivale. 5 minutes. F. M. Andrews. 
The Sporangium of Vaucharia. 5 minutes. F. M. Andrews. 
The Reclamation of Soil by Fungi. 10 minutes. F. M. Andrews. 
A Pocket Dissecting-scope. 5 minutes. Elmer G. Campbell, Purdue 
University. 
A Panorama of Stone Mountain and Its Vegetation. Lantern. 15 
minutes. Elmer G. Campbell. 
Preparation and Use of Collodion Sacs in Exalting Micro-organisms. 
Charles A. Behrens, Purdue University. 
Red Cedar in Indiana. 10 minutes. Stanley Coulter, Purdue Uni- 
versity. 
Plants New to Indiana. X. 3 minutes. Charles C. Deam, State 
Forester, Bluffton. 
Indiana Fungi. VI. 5 minutes. J. M. Van Hook, Indiana Uni- 
versity. 
Evidences of the Seed Carriage of Certain Euphorbia Rusts. 5 
minutes. E. B. Mains, Purdue Agricultural Experiment Station. 
Observations Concerning Puccinia Pattersoniana. 5 minutes. E. 
B. Mains. 
The Growth of Tree Twigs. 10 minutes. C. A. Ludwig, Clemson 
College, South Carolina. 
Indiana Plant Diseases. 1921. 10 minutes. Max W. Gardner, 
Purdue Agricultural Experiment Station. 
On the Endogenous Formation of Flowers. 5 minutes. T. G. 
Yuncker, DePauw University. 
Development of Sporogenous Tissue in the Foot of the Sporophyte 
of Porella platyphylla (1) Lindb. 5 minutes. Flora Anderson, 
Indiana University. 
