192 



BULLETIN OF THE BUREAU OF FISHERIES 



Pearsb, A. S. 



1918. The food of the shore fishes of certain Wisconsin Lakes. Bulletin, U. S. Bureau of 

 Fisheries, Vol. XXXV, 1915-16 (1918), pp. 215-292. Bureau of Fisheries Document 

 No. 856. Washington. 



1921. The distribution and food of the fishes of three Wisconsin lakes in summer. Univer- 

 sity of Wisconsin Studies in Science, No. 3, June, 1921, 60 pp. Madison. 

 Pbarse, A. S., and Henrietta Achtenberg. 



1920. Habits of yellow perch in Wisconsin lakes. Bulletin, U. S. Bureau of Fisheries, Vol 

 XXXVI, 1917-18 (1920), pp. 293-366. Washington. 

 Powers, Edwin B. 



1920. The variation of the condition of sea water, especially the hydrogen-ion concentration, 



and its relation to marine organisms. Publications of the Puget Sound Bological 

 Station, vol. 2, No. 64, pp. 369-385. Seattle. 



1921. Experiments and observations on the behavior of marine fish toward the hydrogen- 



ion concentration of the sea water in relation to their migratory movements and 

 habits. Ibid., vol. 3, No. 57, pp. 1-22. Seattle. 



1922. The physiology of the respiration of fishes in relation to the hydrogen-ion concentration 



of the medium. Journal of General Physiology, vol. 4, No. 3, 1922, pp. 305-317, 

 diagrams. 



1922a. The alkaline reserve of the blood of fish in relation to environment. American Jour- 

 nal of Physiology, vol. 61, No. 2, 1922, pp. 380-383. Boston. 

 Rubner, Max. 



1924. Aus dem Leben der Kaltbliiters. Teil I. Die Fische. Teil II. Amphibien und-; 

 Reptilien. Biochemische Zeitschrift, vol. 148 (1924), pp. 222-307. Berlin. 



Schwartz, F. 



1884. Der Einfluss der Schwerkraft auf die Bewegungsrichtung von Chlamidomonas und 

 Euglena. Berichte der Deutschen Botanischen Gesellschaft, Band II, pp. 51-72. 

 Berlin. 

 Shelford, V. E. 



1923. The determination of hydrogen-ion concentration in connection with fresh-water bio-' 



logical studies. Natural History Survey of Illinois, Bulletin, Vol. XIV, Art. IX, pp. 

 377-395. Urbana. 

 Shelford, V. E., and W. C. Allee. 



1913. The reactions of fishes to gradients of dissolved atmospheric gases. The Journal of 

 Experimental Zoology, Vol. XIV, No. 2, pp. 207-266. [See pp. 262-266.] Phila- 

 delphia. 



Shelford, V. E., and E. B. Powers. 



1915. An experimental study of the movements of herring and other marine fishes. Bio- 

 logical Bulletin of the Marine Biological Laboratory, Vol. XXVIII, pp. 315-334. 

 Woods Hole, Mass. 



Wells, Morris M. 



1913. The resistance of fishes to different concentrations and combinations of oxygen and 

 carbon dioxide. Biological Bulletin of the Marine Biological Laboratory, Vol. XXV, 

 No. 6, pp. 323-347. Woods Hole, Mass. 



1915. Reactions and resistance of fishes in their natural environment to acidity, alkalinity, 

 and neutrality. Ibid., Vol. XXIX, No. 4, pp. 221-257. Woods Hole, Mass. 



