PEELIMINAKY EEPOET. 7 



nodules, with a few other invertebrates, .-^eeined to be all that lived at these 

 great depths, in 2500 to 2900 fathoms, far away — say from 700 to 1000 

 un'les — from the nearest land. 



The bottom temperatures of the deep Moser basin varied between 34.6° 

 at 2628 and 2740 fathoms, to 35.2 at 2440 fathoms, and 35' at 2475 

 fatiionis, about 175 miles from the Marquesas. At Station 23, off the 

 Marquesas, in 1802 fathoms, the temperature was 35.5". 



Owing to the failure of many of our deep-sea thermometers, we were not 

 able to make any satisfactory serial-temperature observations. At Station 

 11, lat. 14' 38' N., long. 136' 44' W., in 2646 fathoms, we obtained: 



79° at surface. 48.9° at 200 fathoms. 



78.7° " 50 fathoms' 44.1° " 300 



55.9° " 100 " 39.9° " 700 " 



These temperatures are somewhat higher than those obtained by the 

 "Challenger" in similar latitudes on their line to the westward of ours 

 between the Hawaiian Islands and Tahiti. At Tahiti a temperature of 

 40' is found to vary between 500 and 600 fathoms, off Hawaii a temper- 

 ature of 48' obtains in 224 fathoms, at Hilo 40' was found in 400 fathoms, 

 much colder than on the eastern lines. 



The temperatures of the bottom between the Marquesas and Paumotus 

 were 34.9° at 1932 fathoms, 35' at 2456 fathoms and 2451 fathoms, and 

 35. r at 2527 fathoms. 



We did not take an}- bottom temperatures between the Paumotus and 

 Tahiti. 



Our deep-sea nets not having readied San Francisco at the time we 

 sailed, we limited our pelagic work to surface hauls, of which we generally 

 made one in the morning and one in the evening, and whenever practi- 

 cable, some hauls with the open tow-nets at depths varying between 100 

 and 350 fathoms. The results of these hauls were very satisfactory. The 



' Off shore off San Francisco the " Albatross" observed in 



Fathoms Fathoms. 



,3.-)2 53.5° 1122 35.5° 



Gl.S 39° 1597 35° 



867 37° 2594 34.9° 



line San Francisco to Hawaiian Islands. 



