258 
BULLETIN OF THE BUREAU OF FISHERIES. 
Food of fish in fishponds at Fairport, Iowa, by H. E. Schradieck. 
[In the last five columns the figures are percentages, the entire food 100.] 
This table is of considerable interest for several reasons in spite of the fact that 
it contains but five different kinds of fish.. In the first place, these fish are widely 
distributed and represent 10 different ponds, whose contents of animal and vegetable 
life are very diverse. In consequence the record has a broader significance than it 
would otherwise possess. Again, three of these fish — the common sunfish, the chan- 
nel catfish, and the small-mouthed buffalofish — appear only in Forbes’s record, 
where there were no data as to the size of the fish or the amount of food. A fourth, 
the large-mouthed black bass, appears only in Pearse’s record, where the amount 
of beetles consumed was insignificant. 
The present record supplies these missing details and, so far as the bass is con- 
cerned, entirely changes the diet statistics. Of the small-mouthed buffalofish 
the examination of two lots from separate ponds, totaling 78 fish, none of which 
ate any beetle food, have been included for the sake of the contrast in size. The 
