10 F.XPLORATTONS^ WESTERN ATLANTIC^ STEAMER BACHE, 1914. 



The course of the OTiallenger in 1873 crossed that of the Bache at 

 Bermuda, allowing a direct comparison of the vertical distribution 

 of temperatures for 1873 (Murray, 1884) and 1914 in that neighbor- 

 hood. The temperature series taken by the Challenger about 260 

 miles south of Bermuda in March of that year {Challenger station 29), 



Temperature, Centigrade 



„3 4 5° B 7 8 9 10° 11 12 13 14 15° 16 17 18 19 20^21 

 Meter 



100 



200 



300 



400 



500 



600 



700 



800. 



900 

 1000 

 1100 

 1200 

 1300 

 1400 

 1500 

 1600 

 1700 

 1800 



Fig. 4.— Temperatiire sections on a line running 200 miles southwest from Bermuda; stations 10179, 10181, 

 10183; and Challenger station 37 ( ). 



agrees very closely with the serial at Bache station 10185, except near 

 the surface, as shown by the following table : 



Depth in meters. 



1,000 

 1,100 

 1,200 

 1,300 

 1,400 

 1,500 

 1,600 

 1,700 

 1,800 



Challen- 

 ger sta- 

 tion 29. 



C. 



5.8 



4.7 



4.6 



4.5 



4.5 



4.2 



4 



3.9 



3.9 



