AFEENUIX. 



301 



No. 50. 



A few Observations on the Temperature of the Sea in latitude 

 27° 30' S. and longitude 41° E. ; on the loth May 183G.— (Six's 

 self-registering Thermometer, Fahrenheit's Scale, used.) 



At the surface 



, ^ 



75,6 



At 200 fathoms 



below 



58",5 



At 5 



fathoms 



below 



74,5 



300 



• • 



55,5 



8 







74,2 



400 



• • 



52,5 



18 







74,0 



420 



.. 



52,0 



20 







74,0 















28 







73,0 



A few repeated • 



— 





40 







72,5 



At 5 fathoms 



below 



74,4 



48 







71,0 



20 





74,0 



50 







70,0 



48 





71,0 



75 







68,0 



50 



• ■ 



70,0 



100 







64,5 



100 



• • 



64,5 



In April 1836, at the Keeling Islands in the Indian Ocean (lat. 

 12° S.), the temperature at the bottom, in 363 fathoms, was 45° 

 (very carefully observed). 



No. 51. 



TABLE OF REMARKABLE HEIGHTS VISIBLE FROM A SHIP. 



The heights given in this table were ascertained by angular mca> 

 surement : they are on the coasts of South America, the Falldand 

 Islands, and the Galapagos. 



Summits. Feet. 



Abingdon Island .......... 1,950 



Acari Mount 1 ,650 



Aconcagua 23,200 



Ahuja Point, Height near .. 1,000 

 Albemarle Island, S.W. summit 4,700 

 Albemarle Island, S.E. ditto 3,720 

 Albemarle Island, Middle ditto 3,780 

 Albemarle Island, North ditto 3,500 

 Albemarle Island, over Cape 



Berkeley 2,360 



Alexander Mount 1,960 



Amatape Mountain 3,270 



Summits. Feet. 



Animas Las, Height south of 1,800 

 Aymond Mount 1,000 



Banks Hill, Good Success Bay 1 ,400 

 Bell Mount (Tierra del Fuego) 2,600 



Benson Mount 1,780 



Bofjueron Mount 3,000 



BufaderoHill 1,620 



Burney Mount 5,800 



Callao, Height near 3,000 



Campana Mount 3,450 



