PAPERS PRESENTED AT SEVENTH ANNUAL MEETING. 19 



72. Snake notes, [Illustrated with specimens] (10 minutes). Prof. H. L. Clark, 

 Olivet. 



73. The Variability of Snakes (30 minutes). Prof. H. L. Clark, Olivet. 



74. Some reactions of the Agrionidae Larvae. C. F. Curtis Riley, Ann Arbor. 



75. Some Observations on Phototaxis (10 minutes). Dr. S. J. Holmes, Ann Ar- 

 bor. 



76. An Exhibit Showing Commensalism of Crab and Actinian. Dr. J. E. Duer- 

 den, Ann Arbor. 



