478 Screntifie Intelligence. 
Maine salmon, Rhine salmon, geen salmon, white-fish) ; Mul- 
ripped of fish in general, including a history of fish-culture 
the species of Seuss or whit aa sh, by J. w. Miner; De- 
scriptions of the North American species of salmon and trout, by 
George Suckley; The Salmon of the Danube, or the hucho ‘and 
its mtroduction into American waters, b B. H el; Report of 
McCloud River, and on the ae Salmonide generally, by 
Livingston Stone; several interesting pa on the salmon and 
trout of other parts of the United States and Canada, by Mr. 
Stone, Chas. Lanman \tkins C Ss 8, 
arrow, and others; several valuable papers giving ac- 
counts of the shad and the shad fisheries in all the principal rivers, 
both southern and no orthern, together with accounts of the vari- 
s experiments made in the artificial increase of sh: d; and 
detailed account by Mr. Milner of the mode of propagation oe 
canes introduction of young shad into the various rivers and 
lakes, by the U. 8. Commissioner; also a detailed history of fish 
culture, Thoth in ee and this cage sal “ See epee of 
kins, 
©. Edmunds, M. McKennie, J. F. Ingalls, and J. W. Milner. 
Appendix F is devoted to invertebrate Zoology, and includes a 
descriptive paper on the her fresh-water Crustacea of the 
northern United States, and one on crustacean parasites of fishes, 
with agian and figures of a number of new species, by S. 
I. Smith ; a synopsis of the fresh-water leeches, by A. E. Leta 
Sketch of the invertebrate fauna of Lake Superior, by S. 1 Sm 
Food of fresh-water fishes, by 8. I. Smith; Natural History of. se 
gourami, by Theodore Gill; Notes on the grayling (Thymalus 
of North America, fe J. W. Milner. Also several miscellane- 
ous papers relating to temperatures of the Gulf of Mexico; Fish- 
culture; Bibliography of reports relating to the fisheries, ete. 
The plates illustrate a great variety of traps, pounds, weirs and 
other devices for capturing Sshea; fish-ways ;_ hatchin ng saci : 
fog ia oe insect larvae; the gourami, etc. 
some Parasitic Worka: by Dr. Lery.—Dr. Leidy hags 
saentified the “Asoaris mystax as an intestinal worm of a Bengal 
tiger. The species has been found “in many other feline species, 
including the domestic cat and lion.’ 
A long thread-worm from an apple, submitted to Dr. Leidy, was 
found by him to be the Mermis acuminata, a species that is para- 
sitic in the larve of many insects, including the codling-moth, 
or fruit-moth, of f the fo gens He states that “ twenty-five years ago 
he described a rm (Proc. 1850, 117) belonging to the collec- 
