1959, which went along the north east coast of Brazil. Chlorophyll a 

 was determined photocolorimetrically . Little Information 1? available, 

 however, as to the exact technique and the nature of the units in which 

 the chlorophyll is reported, (Diretoria de Hidrografia e Navegacao^ 1959). 

 This program was carried out by the Brazilian Navy as part of the Brazilian 

 contribution to the International Geophysical Year, 



A2 47. Cruise 247 of the ATLANTIS which was made between 1 February 

 and 20 July 1959 and crossed the Atlantic from the Mid-Atlantic Ridge to the 

 Canary Islands along 28" North Latitude and back along 32° South Latitude and 

 went north in the region of the Brazil current. 



The sampling time indicated for this cruise refers to the Greenwich 

 Mean Time rather than the Local Zone Time. Chlorophyll a concentration 

 is expressed in milligrams per cubic meter of water. The samples were 

 analyzed according to the method of Richards with Thompson (1952) (Fuglister. 

 1957 appendix A). Members of the scientific party were C. Dana Den«?more, R, S. 

 Edwards, R. G. Leahy, A. R. Miller (Ch. Sci.). R. Munns . A, C. Neumann, D. M. 

 Owen^ J. Schilling and J. Valois . 



This Investigation was supported by the Office of Naval Research contract 

 Nonr-2196(00), NR 083-004 and by the National Science Foundation under IGY Grant 

 Y/9.5/80. 



B. Station Bravo on Fletcher's Ice Island which drifted in the Arctic. 

 Hydrobiological observations were carried out between May 195^ and June 195£ 

 as part of the scientific program of Project ICESKATE of the International 

 Geophysical Year. 



The course of drift was along the edge of the continental shelf within 



615 



