FIELDS OF FORCE AND OF MASS IN THE SEA. 



1.59 



IS 10 5 __J> A "' 



: Odecibai s 



Ftg. 28. Field of mass. May 1!K)4, represented by charts giving the average specific volume (10 'm'/ton) of the sea-water in 

 isobaric sheets, or the thickness of these sheets in dyn. meters. 



