820 EIGHTH PACIFIC SCIENCE CONGRESS 



The sea water was sampled on June 13th, 1952, offshore at Shira- 

 hama, Wakayama prefecture, Japan. 



As seen from Table II, the molybdenum content of the sampled 

 tungsten content is 0.10, 0.15 and 0.11 ^itg/l., in the average 0.12 /xg/l. 



We wish to thank Dr. T. Tokioka, of the Seto Marine Research, 

 Kyoto University, for his help in sampling the sea water. 



Literature Cited 



<1) Ernst, Hormann. Brit. Chem. Abst., I. A. 99 (1938). 



(2) Bardet, Tchakirian et Lagrage. Compt. rend., 206, 450 (1938). 



<3) ISHIBASHI, Shigematsu and Nakagawa. (In press.) 



<4) Ishibashi and Shigematsu. Bull. Inst. Chem. Res., Kyoto Univ., 27, 42 



(1951). 

 (5) Lyman and Fleming. J. Marine Research, 3, 134 (1940). 



