400 Wisconsin state agricultural society. 
proportion of about one particle of the fine to ten coarse. As young 
animals of all kinds eat more in proportion to their size than older 
ones, we should expect the young trout to eat voraciously. One 
hundred mouthfuls per day for each one would not be perhaps too 
large an estimate. These mouthfuls must be no larger than the 
size which a little trout can conveniently seize and swallow, (for 
very young trout less than the one-thirty*second of an inch in 
diameter,) as trout do not bite their food, but swallow it whole. 
Then, in order to give these ten thousand fish one hundred mouth¬ 
fuls each per day, a quantity of liver must be divided into one 
million particles, each one-thirty-second of an inch or less in diam¬ 
eter, and all the larger pieces left in are not only a total loss, but 
so much positive damage, as they tend to foul the water. That 
the reason of failure lies in a lack of properly-divided food, we 
should also judge from a comparison of the results of feeding 
other fish. The (true) salmon, salmon-trout, white-fish and her¬ 
ring belong to the same family of fish as the brook-trout, and the 
methods of hatching, feeding, etc., are similar. Of these the sal¬ 
mon makes the largest fish when the sac is absorbed, and is the 
least difficult to raise. The salmon trout is next in size, being 
generally twice as large as the young trout, and 95 per cent, is 
not an unusual average to raise. On the other hand the white- 
fish and herring make very much smaller fry than the brook- 
trout, and we have never succeeded in raising any of them by ar¬ 
tificial feeding, and have never heard of any one who has suc¬ 
ceeded. In all our experience we have found that he who has 
had the patience and skill thoroughly to feed his trout, has always 
raised them, and all others have failed. This extreme care and 
delicacy in feeding is only required during a few weeks, as the 
larger the trout grow the less finely divided do they require their 
food. But it is just in those few weeks that the failures occur. 
Nor should the feeding be intermittent, as a day or two of starva¬ 
tion will not add to the general health of the stock. Men succeed 
better with small farms than with large farms, with a few trout 
than with many trout, and the reasons are obvious. 
In regard to the kind of food our opinion remains unchanged, 
that any animal substance which can be finely enough divided is 
