328 



THE DEPTHS OF THE SEA. 



[CHAP. vii. 



fathoms, that was the temperature of the whole 

 mass of water beneath, down to the greatest depth 

 explored." The temperature at 100 fathoms varies 

 very little from 13 C. (55'5 Fahrenheit), and the 

 Mediterranean attains in many places a depth of up- 

 wards of 1,500 fathoms, so that here we have the 

 strange phenomenon of an underlying mass of water, 

 1,400 faihoms deep, of a uniform moderate tempera- 

 ture ; a state of things singularly different from that 

 which obtains at like depths in the Atlantic. Dr. 

 Carpenter's ingenious speculations as to the cause 

 of this difference will be considered later. 



VAAV CHURCH IN SUDERO. 



