90 THE CANADIAN ENTOMOLOGIST. 



X. L. Partridge. — The tracheation of the pupal wings of 

 some saturnians. 



I.. B. Walton. — Studies on the mouth-parts of Rhyparobia 

 niaderice (Blattidae), with a consideration of the homologies ex- 

 isting between the appendages of the Hexapoda. 



James Zetek. — Determining the flight of mosquitoes. 



\Mlliam A. Riley. — Some sources of laboratory material for 

 work on the relation of insects to disease. 



Y. H. Tsou and S. B. Fracker. — The homology of the body 

 setas of lepidopt'erous larvae. 



Anna H. Morgan. — Eggs and egg-laying in may-flies. 



Herbert Osborn. — Remarks on the CicadidEe with special 

 reference to the Ohio Species. 2. Notes on insects of a lake 

 beach. 



Edna Mosher. — The anatomy of some lepidopterous pupae. 

 Frank E. Lutz. — On the biology of Drosophila ampelophila. 



E. P. Felt. — Observations on the biology of a blow-fly and a 

 flesh-fly. 



C. K. Brain. — Some anatomical studies of Stonioxys calcitrans 

 Linn. 



Edith M. Patch and William C. Woods. — A study in an- 

 tennal' variation . 



Alex. D. MacGillivray. — Propharynx and hypopharynx. 



F. L. Washburn. — A few experiments in photographing liv- 

 ing insects. 



The following ofihcers were elected for 1913. 



President. — Charles J. S. Bethune, Ontario Agricultural 

 College, Guelph, Ontario. 



First Vice-President. — Philip P. Calvert, University of Penn- 

 sylvania, Philadelphia, Pennsylvania. 



Second Vice-President. — William M, Marshall, University of 

 Wisconsin, Madison, Wisconsin. 



Secretary-Treasurer. — Alex. D. MacGillivray, University of 

 Illinois, Urbana, Illinois. 



Additional members of Executive Committee.-Herbert Osborn, 

 Ohio Slate University, Columbus, Ohio; C. P. Gillette, Colorado 

 Agriculture Experiment Station, Fort Collins, Colorado; Vernon 



