MICHIGAN ACADEMY OF SCIENCE. 11 



Farm Accounting: a Business Problem. C. S. Dunford, Michigan Agricultural 



College. 

 Influences of the Industrial and Social Revolution upon the Agricultural Industry 



of America. Roy H. Hohncs, Hillsdale College. 

 The Teaching of Sociology, Its Place in the College Cm-riculum. G. S. Dow, Olivet. 

 Farm Finance. W. O. Hedrick, Michigan Agricultm-al College. 

 Municipal Accounts of Dayton. Frank F. Kolbe, University of Michigan. 

 The Valuation of Land. Floyd E. Armstrong, University of Michigan. 

 The Teaching of Statistics. Warren S. Thompson, University of Michigan. 

 English Taxation. Rufus S. Tucker,University of Michigan. 



SECTION OF BOTANY. 



LeRoy H. Harvey, Chairman 



Room B 207, Natural Science Building 



Wednesday, March 29, 9:00 a. m. and 1:30 p. in. 



Reproduction in Opuntia rafinesquii (lUus.) Wm. E. Praeger. 



The Hormone Theory of Chromosome Action. (lUus.) Ernst A. Bessey. 



Fern Notes. O. A. Farwell. 



A Convenient Method of Wasliing Fixed Preparations. Richard de Zeeuw. 



A Macrosporium Disease of Red Clover. (Illus.) L. J. Krakover. 



On the Pronunciation of Scientific Names. H. A. Gleason. 



Some Studies of the Botrytis Neck Rot of Onion. M. T. Munn. 



Pathophytes and Pharmacophytology. A. D. Bush. 



Plants of Chippewa County. (By title.) C. K. Dodge. 



Plants of Schoolcraft County. (By title.) C. K. Dodge. 



Influence of an Incomplete Culture Solution on Photosynthesis. O. M. Gruzit. 



A Simplification of the Present Freezing-Point Method for the Determination of 

 Osmotic Pressure of Plant Saps. O. E. Harrington. 



Further Studies on a Simplified Method for Determining the Conductivity of Elec- 

 trolytes. (Illus.) R. P. Hibbard. 



Phytophthora infestans in its Relation to Weather. (Illus.) G. H. Coons. 



Smuts of Michigan Plants. (Illus.) G. H. Coons. 



Unreported Michigan Fungi for 1915. (By title.) C. H. Kauffman. 



Some Mycological Features of the Mountains of Washington. (Illus.) C. H. 

 Kauffman. 



The Mucors in Culture and Herbarium. (Illus.) Alfred H. W. Povah. 



The Wintering of Coleosporium solidaginis. E. B. Mains. 



The Elementary Species of Oenothera; Their Origin by Mutation and Behavior on 

 Hjbridization. H. H. Bartlett. 



The Effect of Light, Temperatm-e and Length upon the Geotropic Reaction of 

 Primary Roots. Richard M. Holman. 



The Ferns and Their Distribution about Douglas Lake, Michigan. Frank T. 

 McFarland. Read bv H. A. Gleason. 



