RESULTS OF MARITIME GRAVITY RESEARCH 



69 



Ewing, Maurice, Gravity measurements on the U. S. S. 



Baracdda. 

 Hess, Harry H., Geological interpretation of results of 



the cruise of the U. S. S. Baracuda — a preliminary 



report. 



The Italians have been active in studies of gravity 

 at sea. References to their work are as follows: 



L. T. (L. Tonta), Short note on the measurement of the 

 acceleration of gravity at sea and on an Italian 

 gravimetric cruise in the Tyrrhenian Sea: Hy- 

 drogr. Review, vol. 8, pp. 243-248, 1931. 



Cassinis, G., An Italian gravimetric cruise in the 

 Mediterranean: Hydrogr. Review, vol. 9, pp. 148- 

 149, 1 fig., 1932. 



Cassinis, G., I resultati della crociera gravimetrica del 

 R. Soramergibile Vettor Pisani e la gravita in 

 Italia: Soc. Ital. Progr. Scienze, 22 Riun., Bari, 

 Oct. 1933, Atti, vol. 2, 1933. Abstr., Hydrogr. 

 Review, vol. 11, pp. 185-186, 1934. 



Figure 10 shows the route of the vessel and the 

 positions of the stations occupied. 



The French have also done some work in the 

 Mediterranean. A note on their expeditions is 

 contained in the following article : 



Cot, D., L'Etude de la pesanteur sur la mer: Assoc. 



interuat. d'Oceanogr. phys.. Gen. Assemb., Edin- 

 burgh, Sept. 1936, Proc.-Verb., no. 2, pp. 163-164, 

 1937. (Note on cruises of the French Navy in the 

 Mediterranean in 1933 and 1936.) 



The Japanese for several years have been active 

 in the study of gravity at sea over the Nippon 

 Trench and adjacent areas. References to three 

 publications are as follows : 



Matuyama, M., Measurements of gravity over the 

 Nippon Trench on board the I. J. Submarine RO- 

 57, preliminary report: Imper. Acad. Proc, vol. 

 10, pp. 626-628, 1934. 



Matuyama, M., Distribution of gravity over the Nippon 

 Trench and related areas: Ibid., vol. 12, pp. 93-95, 

 1 fig., 1936. 



Matuyama, M., Gravity survey by the Japanese Geo- 

 detic Commission since 1932 : Internal. Union Geod. 

 and Geophys., Si.\th Gen. Assemb., Edinburgh, 

 1936, Japan Nat. Com. Geod. and Geophys. Rept. 

 no. 2, pp. 8, 1 fig., 1936. 



Plate 35 is a reproduction of the chart presented 

 in the third paper by Professor Matuyama. This 

 chart is interesting in that it shows a distribution 

 of gravity anomalies similar to those that have been 

 discovered in both the East and the West Indies 



