420 



PHYSICAL, CHEMICAL, AND BIOLOGICAL 

 OBSERVATIONS IN THE EASTERN TROPICAL 

 PACIFIC OCEAN: THREE CRUISES TO THE 

 GULF OF TEHUANTEPEC, 1958-59 



Marine Biological Laboratory 



LIBBAKY 



, DEC 2 1962 

 WOODS HOLE, MASS. 



SPECIAL SCIENTIFIC REPORT-FISHERIES No. 420 



UNITED STATES D EPA^TMEJ^FjmE^ INTEFMOR^ 



FisFTNTWilbTiFTlERTicF 



