SPECinC GRAVITY OF SEA WATER. 



431 



The collective observations on the progress of 

 the decrease of heat were made in the South Sea. 

 From the Atlantic Ocean we received only a 

 few insulated statements, for depths of a hundred 

 to two hundred fathoms. The experiments in 

 both oceans are arranged in the following table. 



Warmth of the Sea Water at different Depths, arranged 

 according to the Geographical Latitudes in degrees of 

 Reaumur's Thermometer. 



The temperatures in the usual .soundings from 

 70 to 80 fathoms, appear, on account of their con- 

 siderable number, from which menu numbers mav 



