23} 3 
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ee 
Sverdrup, H. U., M. W. Johnson, R. H. Fleming. The 
Oceans. Prentice-Hall Inc. New York. 1087 pp. (1946). 
Takanobu, S. et al. Radiochemical studies on "Bikini 
Ashes" March 1, 1954. Part II. A consideration on 
their formation. Res. in the Effects and Influences of 
the Nuclear Bomb Test Explosions 1: 566-574 (1956). 
Thompson, T. G. and T. J. Chow. The strontium-calcium 
atom ratio in carbonate-secreting marine organisms. 
Papers in Marine Biology and Oceanography, pp. 20-39. 
Pergamon Press Ltd. London (1956). 
Vinogradov, A. P. The Elementary Chemical Composition of 
Marine Organisms. Sears Foundation for Marine Research, 
Yale Univ. New Haven. 647 pp. (1953). 
Welcher, F. J. The Analytical Uses of Ethylenediamine 
Tetraacetic Acid. D. Van Nostrand Co. Inc. Princeton. 
3 pp. lS 5o)R 
