lOOO 



BULLETIN OF THE BUREAU OF FISHERIES. 



On the twenty-seventh day the eggs were all removed from the case, the latter 

 thoroughly cleaned, and the tray containing 8,000 eggs was replaced for a further test 

 of ten days. During the first five of these days the case was outside in a temperature 

 ranging from 14° to 50° F., the last five it was inside the hatching room at a 

 temperature of 50° F. 



Record of Last 10 Days of Test. 



These eggs were then removed to Clark hatching troughs and at the end ot one 

 week hatched, producing good strong healthy fry. The fry were held until the sac 

 was nearly absorbed, and then planted. 



The tray containing the 8,000 eggs stood the test for the entire thirty-six days, and 

 at this rate would give the capacity of the case as 192,000 lake trout eggs, thus dem- 

 onstrating that a much larger number of eggs than claimed for it can be safely trans- 

 ported in this case should occasion demand. During the above lo-day test but 20 

 pounds of ice was consumed. 



