610 REVIEWS. 
are lost in the intervals of stripping. It does not disturb 
the fish in the process of spawning. It insures a perfectly 
natural impregnation. 
The question whether naturally impregnated eggs are 
better than the stripped eggs, is not yet settled. Iti is cer- 
tain that more eggs can o» impregnated by the stripping 
proeess, but that the resulting fish are as healthy as those 
grown from naturally fertilized eggs, is not yet definitely 
proved. We are inclined to think that when the stripping 
is properly performed there is little difference. However 
this may be, a: few eggs more or less are of little conse- 
quence to the trout-breeder; while convenience and speed 
together with certainty of resu!t are, as in every other art, 
of prime importance. 
REVIEWS. 
ECONOMICAL ENTOMOLOGY IN Missounr* — The annual appearance of 
& volume containing so much that is new t regarding the common injuri- 
ous insects of a single State, is a proof that people are giving increased 
attention to the subject of applied entomology, and that it is considered 
nce to i 
the country at large. There should indeed be an entomologist in each 
State ł whose sole business it should be to acquaint himseif with the hab- 
its of the injurious insects, the best remedies against their attacks, and 
above all the habits of their insect parasites, which keep them under, as 
* Second Annual Report on the Noxious, Beneficial and other Insects, of the State of Mis- 
souri, made to the State Board of Agriculture. By C. V. Riley, State Entomologist, Jefferson 
City, 1870. 8vo. pp. 141. With numerous wood cuts. For sale at the Naturalist's Book 
ile a large proportion of this report is reprinted from the ** American Entomologist,” 
of which Mr. eer is the editor, yet the observations were made by him as the State Ento- 
mo —À and that able m ne may be said to be in a sense the entomological organ of the 
Misso ard of Agriculture. [W that the ** American Entomologist” will 
simi nded for a year. We trust to see it revived at the end of that time, and meanwhile 
shall sorely miss its monthly visits.] 
this report was printed the State of Illinois has appointed Dr. Le Baron to succeed 
the late Mr. Walsh as State Entomologist of Illinois; and Dr. A. S. Packard, jr., has been this 
year aiti ee State Entomologist, by the Board of Agriculture of the State of Massachusetts. 
The e of New York has published nine reports on noxious and beneficial insect shad Dr. 
Fitch, a rie I 
ESSI. 
