132 PRACTICAL TROUT CULTURE. 



the contrary, the eye-specks should be well devel- 

 oped before shipment. The prpper time is from 

 the twentieth to the thirtieth day, when the tem- 

 perature of the water has been 50 



If troughs have been used, the spawn should be 

 first formed into little heaps with a feather or 

 fine brush ; then taking the cribble (Fig. 26) in the 



Fio. 86. 



left hand the eggs are brushed upon it and trans- 

 ported to the packing boxes, any spawn remaining 

 on the gravel being picked up by the bulb syr- 

 inge ; but if the trays have been employed, this 

 tedious process is greatly simplified the grilles 

 need only be removed and their contents emptied 

 into a large pan of water. In the latter case, the 

 process of counting is greatly facilitated ; each 

 rod of the grille holding, on an average, one 

 hundred spawn, their number can be readily es- 

 timated. We have been in the habit of allowing 

 from five to ten per cent, additional, the amount 



