REPORT OF COMMISSIONER OF FISH AND FISHERIES XXXVII 
A brief notice of some of these articles may not be inexpedient. 
They are arranged under certain heads, as follows : 
A.—GENERAL CONSIDERATIONS. 
This includes a statement of the proposed plan of the joint inquiry of 
the United States Fish Commission and the Census of 1880 into the 
fisheries of the United States: also an account, by Mr. Goode, of the 
work accomplished during the first ten years of the United States Fish 
Commission. 
B.—DEEP-SEA RESEARCH. 
In this Professor Verrill gives an account of the apparatus used by 
the United States Fish Commission in dredging off the coast of New 
England. 
C.—THE SEA FISHERIES. 
In this appendix are given articles upon the Icelandic, Swedish, and 
Norwegian fisheries in general, and upon the methods and results of 
certain special fisheries, such as the spring herring, sardine, and the 
eapelin. 
It also has a paper by Mr. N. P. Scudder on the halibut fishery in 
Davis’s Strait. This gentleman was sent by the Commission in 1878, 
on a Gloucester halibut schooner, for the purpose of gaining information 
on the subject. 
D.—Economic RESEARCH. 
A very important communication by Prof. W. O. Atwater is here 
presented of an investigation into the chemical composition and eco- 
nomic values of the fish and invertebrates used for food. This work 
was initiated at the expense of the United States Fish Commission, and 
will be continued in the future. 
E.—NATURAL HISTORY. 
Mr. Goode presents an account of what is known of the various 
species of sword-fish in general, especially of the three belonging to 
the coast of the United States. Mr. R. E. Earll, of the United States 
Fish Commission, gives an account of his observations in regard to the 
hatching of Spanish mackerel in Chesapeake Bay. 
An elaborate contribution to the biology of the Rhine salmon, by Mr. 
Riisch, is included in this appendix. 
F.—PROPAGATION OF Foop-FISHES. 
A report by Mr. Raveret-Wattel, secretary of the Société @ Acclimata- 
tion, of Paris, upon the condition of fish-culture in foreign countries, 
especially as represented at the Berlin Fishery Exhibition, will be found 
to contain meny interesting statements on the subject. A paper by Mr. 
J.P. J.Koltz,* translated from the French, reproduces one of the earliest 
*The second edition of 1&59. 
