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ILLUSTRATIONS 

 Figure Page 



1. Track of Hugh M. Smith cruise 52 2 



2. Track of N. B. Scofield cruise 59S4 3 



3. Surface temperature (upper panel) and temperature-depth profiles (lower panel) for 



successive legs of Hugh M. Smith cruise 52. For general location of legs, see 



the track chart. Positions of designated points of the legs are: A -- 39° N., 



135° W.; B — 31° N. , 125° W. ; C — 27° N., 122° W. ; D — 27° N., 110°30' W. ; 



E -- 31° N., 125° W.; F -- 29°30' N., 118° W. ; and G -- 27° N., 122° W 4 and 5 



4. Surface temperature (upper panel) and temperature-depth profiles (lower panel) for 



successive legs of N. B. Scofield cruise 59S4. For general location of legs, 



see the track chart. Positions of designated points of the legs are: 



A -- 36°30' N., 126°30' W. ; B — 32° N., 127°30' W. ; C — 38° N. , 128° W.; 



D -- 32° N., 124° W.; E -- 35°30' N. , 124°30' W. ; and F — 32° N., 123° W 6 



TABLES 



Table Page 



1. Summary of weather observations (USWB 1210-F), Hugh M. Smith cruise 52 9 



2. Summary of observations at bathythermograph lowerings, Hugh M. Smith cruise 52 16 



3. Siramiary of observations at bathythermograph lowerings, N. B. Scofield cruise 59S4 .... 23 



4. Oceanographlc observations, Hugh M. Smith cruise 52 25 



5. Oceanographlc observations, N. B. Scofield cruise 59S4 28 



6. Sightings of tuna schools, birds, and aquatic mammals, Hugh M. Smith cruise 52 30 



7. Sightings of birds and aquatic mammals, N. B. Scofield cruise 59S4 31 



iv 



