60 



ocean. I shall treat here only of the heat ofthe 

 sea at it's surface, the phenomenon of most im- 

 portance to the physical history of the Globe, 

 because the superior stratum of the ocean is the 

 only one, that has an immediate influence on the 

 state of our atmosphere. 



The following table is extracted from the nu- 

 merous experiments contained in our journal 

 from the 9th of June to the 15th of July. 



North 



latitude. 



West longitude. 



Temperat. of the 

 Atlantic Ocean 

 at it's surface. 



39° 



10' 



16° 



18' 



150° 



34 



30 



16 



55 



16-3 



32 



16 



17 



4 



177 



30 



36 



16 



54 



18-6 



29 



18 



16 



40 



19-3 



26 



51 



19 



13 



200 



20 



8 



28 



51 



21-2 



17 



57 



33 



14 



224 



14 



57 



44 



40 



237 



13 



51 



49 



43 



24-7 



10 



46 



60 



54 



25-8 



From Corunna to the mouth of the Tagus, 

 the water of the sea varied but little in it's tem- 

 perature ; but from the thirty-ninth degree of 

 latitude to the tenth, the increment was very sen- 

 sible, and very constant, though not always uni- 

 form. From the parallel of Cape Montego to 

 that of Salvage, the progress of the thermometer 



