42 U. S. BUREAU OF FISHERIES. 



Birge, E. A.: Gases dissolved in the waters of Wisconsin Lakes. (With discussion 

 by J. J. Stranahan and Oscar F. Nordqvist.) Bulletin, 1908 (1910), vol. XXVIII, 

 p. 1273-1294, diagrs. Doc. 718 issued m May 5, 1910. 11-5437 



Marsh, Millard Caleb: Notes on the dissolved content of water in its effect upon 

 fishes. Bulletin, 1908 (1910), vol. XXVIII, p. 891-906. Doc. 688 issued April, 

 1910. 10-35560 



Pearse, A. S., and Henrietta Achtenberg: [Oxygen requirements of fish.] 

 Bulletin, 1917-18 (1921), vol. XXXVI, p. 320-326, tables 23-24. 



Simms, George E.: [Adequate supply of oxygen necessary in fish culture.] Bul- 

 letin, 1908 (1910), vol. XXVIII, p. 1018-1019. 



Zacharias, Otto: Some of the life needs of fish. Bulletin, 1886 (1887), vol. VI, 

 p. 445-447. F18-629 



VARIATION. 



[Albino fish.] Bulletin, 1881 (1882), vol. 1, p. 219. 



Bean, Tarleton Hoffman: A hybrid between the lake trout and the brook trout. 



Bulletin, 1887 (1889), vol. VII, p. 216. F18-673 



Knauthe, Karl: Two fertile cyprinoid hybrids. Bulletin, 1894 (1895), vol. XIV, 



p. 29-30. Doc. 234 issued _ Mar. 24, 1894. F12-180 



Krause, K. E. H.: A hybrid plaice Platessa vulgaris, with Rhombus maximus. 



Bulletin, 1882 (1883), vol. II, p. 341-342. F12-368 



Ryder. John Adam: [Notice of an extraordinary hybrid between the shad and 



striped bass.] Bulletin, 1882 (1883), vol. II, p. 187. 



RELATIONS. 

 ENEMIES. 



Annin, James: Poachers or destructive visitors of fish ponds. Bulletin, 1884 



(1884), vol. IV, p. 85-86. F18-232 



Baird, Spencer F.: [Salamander (Menobranchus) eats eggs of whitefish.] Report, 



1886 (1889), p. 64. 

 Beardsley, Arthur Eugene: The destruction of trout fry by hydra. Bulletin, 



1902 (1904), vol. XXII, p. 155-160. Doc. 518 issued Mar. 30. 1903. F12-62 



Benecke, Berthold: The enemies of pond culture in central Europe. Bulletin, 



1886 (1887), vol. VI, p. 337-342. F18-606 



Carpenter, Charles: What muskrats sometimes eat. Bulletin, 1884 (1884), vol. IV, 



p. 295. F18-318 



Chamberlain, F. M.: Some observations on salmon and trout in Alaska. (Enemies: 



p. 107-109.) Report and special papers, 1906 (1908). Doc. 627 issued Dec. 18, 



1907. 7-35437 



Cole, Leon J.: [Enemies of carp.] Report, 1904 (1905), p. 579-584. 

 Collins, Joseph William: [Destruction of fish by sea lions.] Report, 1888 (1892), 



p. 125. 

 Dimmock, George: Belostomidse and some other fish-destroying bugs. (Literature: 



p. 359.) Bulletin, 1886 (1887), vol. VI, p. 353-359, illus. F18-611 



Eben-Bauditten: [Enemies of carp.] Report, 1878 (1880), p. 668-669. 

 Elliott, Henry W.: The destruction of carp by the muskrat (Fiber zibethicus.) 



Methods of trapping the rodent. Bulletin, 1884 (1884), vol. IV, p. 296-297. 



F18-319 

 Friedlaender, Oscar O.: [Sharks, enemy of fish.] Bulletin, 1884 (1884), vol. IV, 



p. 48. 

 Gardner, A. P.: [Belostoma (Belostoma americanum).] Bulletin, 1886 (1887), vol. VI, 



p. 456. 

 Goode, G. Brown: [The lamprey (Petromyzontidae) a parasite.] Bulletin, 1882 



(1883), vol. II, p. 349-354. 



[Enemies of the mackerel.] Report, 1881 (1884), p. 117-119. 



Haack, Hermann: Trapping kingfishers, rodents, and other enemies of trout. 



Bulletin, 1884 (1884), vol. IV, p. 375-376. F18-336 



Hessel, Rudolph: Snakes destructive to carp. Bulletin, 1884 (1884), vol. IV, p. 



294-295. F18-317 

 [Marsh hens and night herons catch carp.] Bulletin, 1884 (1884), vol. IV, 



p. 308. 



[A method of destroying noxious fishes.] Bulletin, 1884 (1884), vol. IV, p. 311. 



[To destroy muskrats. 1 Bulletin, 1884 (1884), vol. IV, p. 470. 



Holmes, John F., and Collins, Joseph William: [Herring and mackerel eaten by 



squid.] Bulletin, 1885 (1885), vol. V, p. 88-89. 



