434 REVIEWS. 
and the whole tenor of the remarks on this subject leads the reader to 
the belief that the purchase of Alaska was wisely made by our govern- 
ment. 
ROUT CurTURE.*— This is just the book that has been wanted by 
every one interested in the raising of fish by artificial propagation. 
contains à vii of the experience of the most successful fish breeder 
n the country, pre ar in concise id forcible language; every word 
fully convincing pe reader that the author is simply giving the results 
of his experience, with di earnest bii of furnishing others with all 
the information necessary for them to become as successful breeders of 
trout as himself. With this book in hand, and a proper location and sup- 
carelessness could make it fail, though, like all other stock raising opera- 
tions there are many things that should be looked after before the eggs 
are placed in the hatching house; and as no sheep raiser would purchase 
five hundred sheep for his farm unless he had what he knew to be suffi- 
cient pastirage for so large a number, so no trout raiser should purchase 
the trout breeder. We hope to give a communication on this subject in 
a future number. 
There are savers facts very interesting to the naturalist alluded to by 
Mr. Green. The average age of a trout he thinks to be about twelve or 
three to ten years. Mr. Green also states that trout will not live in water 
the temperature of which is above 689, and do best at a temperature of 
48°, 
On the last page of the book Mr. Green calls attention to a “ worm” 
Trout Culture. By Seth Green. 12mo pamph., pp. 92. Green and Collins, Caledonia, New 
vies [For sale at the Naturalists’ Agency, Salem. Price $100.] 
Er. 54 
