FIGURES 



Nos . Page 



Photograph of M/V ALASKA Frontispiece 



1. Temperature-depth sections, Gulf of Mexico 6 



2. Frequency distribution of temperatures and salinites 



at various depths 7 



3. Sea surface isohalines, Cruise 1-lA 8 



4. Sea surface isohalines, Cruise 2-lB 8 



5. Sea surface isohalines. Cruise 3-lC 9 



6. Sea surface isohalines, Cruise 4-2A 9 



7. Sea surface isohalines, Cruise 5-2C 10 



8. Sea surface isohalines. Cruise 10- 2B 10 



9. Sea surface isohalines. Cruise 10- 2B 11 



10. Contours of the motionless surfaces in the Gulf of 



Mexico using Defant's method 11 



11. Surface currents in Gulf of Mexico 12 



12. Currents at 500 meters depth in the Gulf of Mexico ... 12 



13. Surface currents in the Gulf of Mexico (Cruise 4-2A) . . 13 



14. Surface currents in the Gulf of Mexico (Cruise 5-2C) . . 13 



15. Locations of stations occupied on Cruise 1-lA 18 



16. Locations of stations occupied on Cruise 2-lB 69 



17. Locations of stations occupied on Cruise 3-lC 139 



18. Locations of stations occupied on Cruise 4-2A 176 



19. Locations of stations occupied on Cruise 5-2C 256 



20. Locations of stations occupied on Cruise 8-3C 332 



21. Locations of stations occupied on Cruise 10-2B 379 



