248 Modern Fishculiure in Fresh and Salt Water. 



"May 2, took about 20,000 and put in same place; 

 raised the curtain, but the sun did not strike the eggs; 



OVARY OF YELLOW PERCH, with nearly ripe eggs, the forked 

 extremity being the anterior part of the roe. 



life in two days. Some one let down the curtains and 

 pushed down the strainer on the waste pipe; about 

 two-thirds of the eggs went down the pipe (it was in 



PART OF A RECENTLY LAID MASS OF YELLOW PERCH EGGS. 

 These cuts are from "A Manual of Fish Culture," ex- 

 tracted from U. S. Fish Commission Report for 1897. 



three bunches), half the remainder dead, probably from 

 handling, as I was informed that somebody lifted them 

 out. The embryos are in constant motion in the egg 



