34 



PACKING THE TROUT OVA. 



water leaves the sink, the ova are drawn into the lead basin. The 

 wooden box is then removed, and the valve of the 2-inch pipe 

 closed so soon as the water falls below the edge of the basin. 



Several hundred frames, according to the number of eggs to 

 be packed one frame being provided for every thousand eggs, are 

 arranged in convenient piles on the right hand of the operator. 



These frames are made of eight pieces of wood, arranged in 

 two squares, with coarse peach netting stretched between. The 

 squares are held and the netting stretched by brass screws, so 

 that any required degree of tension can be easily adjusted. The 

 frames (Figs. 7, 8, 9) are made so as to fit easily inside the 

 travelling trays (Figs. 12, 13). 



