250 PROPAGATION OF FISH. 
road, the most convenient plan is to have round zinc cans 
of about two feet and a half diameter and three feet in 
depth, with the top projecting over on the inside, pierced 
with minute holes, and carried down into the water for 
a short distance, leaving a place in the centre of six 
inches diameter, where the ice can be kept without dan- 
ger of injuring the fish. On the upper edge of one side, 
there is a small door through which the fish can be 
poured. By continually renewing the ice, yearlings may 
be transported without difiiculty, fifty or more in a can. 
It is supposed the cold reduces their respiration, or possi- 
bly the dissolving ice communicates air to the water. 
Trout of half a pound or over cannot be carried more 
than a score or even a dozen together, or they will die 
in spite of the greatest care in a few hours. 
The cans have handles to which ropes are fastened by 
broad hooks, and may be suspended from the beams of 
the baggage cars, where they sway slowly forward and 
back, and do not shake and jolt out the water as they 
otherwise would. 
It may be well to remark, for the benefit of those 
desiring to stock trout ponds, that Mr. Aaron S. Yail, of 
Smithtown, Long Island, has devoted his attention to the 
artificial culture of trout ; that he has been very suc- 
cessful and is willing to stock ponds with any number of 
young trout at reasonable rates, and has generally quite 
a number of both young and old fish on hand. I believe 
he charges for young trout of one or two months seven 
dollars a hundred, but for larger fish of one year or more 
he expects five or six dollars a dozen ; his expenses of 
ti'avel to be paid, but the fish to be charged for as deliv- 
