TEMPERATURE OF THE SEA. 
347 
I cannot dismiss this subject without noticing a magnificent experiment 
of Captain Wauchope’s, of His Majesty’s ship Eurydice, and which I hope 
will be given more circumstantially to the public by that gentleman, together 
with others which have a peculiar value from the caution of the observer, 
the completeness of his apparatus, and the unparalleled depth to which it 
descended. When within a few degrees of the equator, during a calm, this 
gentleman put his apparatus overboard, and allowed it to descend till it 
had carried out 1400 fathoms of line ; but estimated the perpendicular 
depth at 1000 fathoms. The temperature of the surface was at 73° of 
Fahrenheit. On drawing up the instrument, he found the inclosed ther- 
mometer marking 42° ; a difference of temperature between the surface 
and given depth of 31°. 
Y Y 2 
