16 ILLINOIS ACADEMY OF SCIENCE 



Mr. Hankinson has continued his observations of the fishes 

 of the streams of his neighborhood, especially with reference 

 to their breeding dates and habitats. 



Dr. Shelford has continued his extremely interesting and 

 important experimental studies on the reactions of fishes to 

 certain features of their environment, analyzed and isolated 

 by means of an ingenious apparatus which he has devised. 

 His most recent work has been upon the effects of the wastes 

 of gas plants upon the fishes of a stream, a subject which he 

 is to treat in a paper on our present program. 



It will be seen that our original committee on an ecological 

 survey has itself virtually become the agents of such a survey, 

 so far as this is practicable under our present conditions; and 

 it is our intention to annex to our membership all active work- 

 ers in this field, and to plan as we go methods of co-operative 

 organization which will give a unity to our undertakings not 

 possible in the beginning. Respectfully submitted, 



S. A. Forbes, Chairman. 



