190 American Fisheries Society 



LITERATURE. 



BlEDERMAN, A\ r v AND MoRITZ, P.: 



1898. Beitrage zur vergleichenden Physiologie der Verdauung. 3. 

 Ueber die Function der Sogenannten Leber der Mollus- 

 ken. Arch. Phys. Pfliiger, Bd. 75, p. 1-86. 



Blevgad, H.: 



1915. Food and Conditions of Nourishment Among the Communi- 

 ties of Invertebrate Animals Found on or in the Sea 

 Bottom in Danish Waters. Report of the Danish Bio- 

 logical Station to the Board of Agriculture, Vol. 22, p. 

 41-78. Copenhagen. 



Brooks, W. K.: 



1893. The Genus Salpa. Memoirs from the Biological Laboratory 

 of the Johns Hopkins University. II. Baltimore. 



Hensen, Victor: 



1901. Ueber die quantative Bestimmung der kleineren Plankton 

 organismen und ueber den Diagonal-Zug mittelst geeig- 

 neter netzformen. Abth. Kiel, Heft. 2, pp. 67-81. 



Hoole, Samuel: 



1800. The Select Works of Antony van Leeuwenhoek. Trans, from 

 Dutch and Latin editions. 2 Vols, in 1, 658 pp. G. Sid- 

 ney, London. 



Jensen, P. Boysen: 



1915. Studies Concerning the Organic Matter of the Sea Bottom. 

 Report of the Danish Biological Station to the Board 

 of Agriculture, Vol. 22, p.p. 1-39. Copenhagen. 



Keding, Max: 



1906. Weitere Untersuchungen iiber stickstoffbindende Bakterien. 

 Abth. Kiel, (N. F.) 9, pp. 273-309. 



Keutner, Joseph: 



1905. Ueber das Vorkommen und die Verbreitung stickstoffbin- 

 dender Bakterien im Meene. Abth. Kiel, (N. F.), 8, pp. 



27-55. 



Peck, J. I.: 



1896. The Source of Marine Food. Bull. U. S. Fish Commission, 

 Vol. 15, pp. 351-368. 



Petersen, C .G. Joh., and Jensen. P. Boysen: 



1911. The Animal Life of the Sea Bed, Its Aliment and Multi- 

 tude. Report of the Danish Biological Station to the 

 Board of Agriculture, Vol. 20. Copenhagen. 



Putter, August: 



1911. Die Ernahrung der Wassertiere durch geloste organische 

 Verbindungen. Arch. gas. Physiol. Bonn 137, pp. 595-621. 



