REFERENCES 347 



Peters, N., 1934. Die Bevdikerung des Siidatlantischen Oseans mit Ccratien. Wiss. Ergeb. Deutsch. Atlant. 

 Exped. 'Meteor', 1925-7, xii, pp. 1-69. 



Redfield, a. C, 1934. On the proportions of organic derivatives in sea water and their relation to the com- 

 position of plankton. James Johnstone Memorial Volume, Univ. of Liverpool, pp. 176-92. 



Riley, G. A., 1938. Th:; measurement of pliytoplankton. Internat. Rev. d. ges. Hydrobiol. usw., xxxvi, 



PP- 371-3- 

 Van Heurck, H., 1909. Diatomees. Resultats du Voyage du S.Y. 'Belgica' en 1897-9 sous le commande- 



ment de A. de Gerlache de Gomery, Rapports Scientifiques-Botanique, pp. 3-126, pis. i-xiii. 

 WiMPENNY, R. S., 1936. The size of diatoms. I. The diameter variation of RhizosolemiStylihrmis Brightwell 



and Rhizosolenia alata Brightzvell in particular, and of pelagic marine diatoms in general. Journ. 



Mar. Biol. Assoc, n.s., xxi, pp. 29-60. 

 Zenkevitch, L. a., 1931. Fish-food in the Barents Sea {Introduction). Rep. First Session State Oceangr. 



Inst. Moscow. 



