G.-REPORT UPON THE OPERATIONS OF THE U. S. FISH COM- 

 MISSION SCHOONER GRAMPUS FROM MARCH 15, 1887, TO 

 JUNE 30, 1888. 



By J. W. Collins and D. E. Collins. 



ANALYSIS. 



I. — Introduction. 

 II. — Report upon the investigations made by the Grampus from March 15 to Septem- 

 ber 16, 1887, by J. W. Collins. 



A. Study of the migrations of mackerel, etc., spring of 1887. 



B. Investigation concerning the mackerel, etc., summer of 1887. 



1. Objects of the cruise. 



(a) Mackerel. 



( b) Crustaceans. 



(c) Halibut. 



(d) Cod-fishery. 



( e) Great auk. 



2. Detail of naturalists. 



3. Narrative of the cruise. 



4. Courtesies received— 



From Canadian Government. 



From Rev. M. Harvey. 



From American Consul. 



From Job Brothers & Co. 



From Mr. Emerson. 



From Capt. J. W. Pitts. 



From Mr. Turbid. 



From Commander William Wakeham. 



From H. W. Erubree & Sons. 



5. Collections. 



6. Notes upon various species of fish, etc. 



(/) Mackerel. 



(g) Food of mackerel. 



(70 Cod. 



( i) List of trials for cod. 



(j) Sword-fish. 



(k) Halibut. 



( I) Capelin. 



(m) Lobsters. 



(?0 Whales. 



(o) Porpoises. 



(p) Giant squid. 



7. Notes upon the occurrence of hagdons. 



8. Icebergs. 



9. Notes regarding the use of the club-topsail. 



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