248 Modern Fishculture in Fresh and Sail 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 -.eing the anterior part of the roe. 



Hfe in two days Some one let down the curtains and 

 pushed down ti _■ strainer on the waste pipe; about 

 two-thirds of tb 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 ^gg — 



