Figure 1. Showing position of keg in which a nest of eggs 

 of the channel catfish was found July 6, 1916, after pond 

 was drained. Pond 9 D. U. S. Biological Station, Fairport, 

 Iowa. 



Figure 2. Hole in the bank of Pond 9 D. which may have 

 been made by the catfish and used as a nest. July 6, 1916. 



