8 Fish Cultural Association. 
per cent. are all you will have left. Keep them another 
year, and you will have from five to ten thousand fish out 
ef one hundred thousand eggs: There is quite a difference 
in these figures and the figures arrived at on the same 
subject ten years ago, and yet trout-culture is a success. 
No one has yet, to my knowledge, raised trout exclusively 
for the table. That it can and will be done with profit is 
only a question of time. The demand for eggs and small- 
fry, as well as yearlings, is so much above the supply that 
no one has tried to do it—exclusively the raising of fish 
for the table. When capital and skill combine, then we 
shall (hearer the reat, successqoipiroutscultune, 
The method of raising trout in a single pond succeed 
only to a limited extent, yet, by frequent stocking, can be made 
a source of good sport and furnish many a fine mess for the 
table. 
The methods of raising other species of the salmon 
family are identical with that of the Salmo Fontinalis, but 
they are more hardy, not subject to so many diseases, and 
only kept for a short time before being planted in public 
or private waters, where they take care of themselves. 
The above experiments were made at the Crystal Spring 
‘Fish Farm, Oakland, Bergen County, N. J., during the last 
five years by your fellow-member, 
B.- Bs PORE 
San Francisco, Cau., February 15, 1878. 
Mr. Sera “Green: “Mr, Potters conclusions agree” pretty 
well with mine. I will give my ideas as to the way streams 
should be stocked. When we hatch fish we place them in 
the rivulets of some main stream which we wish to stock. 
As soon as the fish acquire a certain size they want larger 
water, and they have to get it. My advice to those who have 
