A PLEA FOR THE PRESERVATION OF RECORDS 

 CONCERNING FISH 



By Jacob Reighard, 

 Professor of Zoology, University of Michigan. 



For five years I have been in charge of the Biological 

 Station of the University of Michigan, situated on Doug- 

 las Lake, about fifteen miles south of the Straits of Mack- 

 inaw in the Southern Peninsula of Michigan. During this 

 time, more especially during the last year, I have record- 

 ed such facts as I could find out about the fish of the 

 lake. In order to study the data collected I have 

 arranged them in tables, one of which is reproduced 

 below : 



DATA CONCERNING PIKE {ESOX LUCIUS) OF DOUGLAS LAKE, 1911-1912. 



Lengths are measured from the tip of the snout along the side to the base of 

 the rays of the tail fin. 



