1144 
THE VOYAGE OF H.M.S. CHALLENGER. 
Stations JO.'V to 
305a 
Organisms prom 
S cRP ACE Nets. 
.Stations 306 
and 306a. 
Surface Organisms. — The following species is recorded from the surface at this 
Station ; — 
Ti'nicat.a (Ilerdman, Zool. pt. 76). 
Salpa coi'difonnis-zonarla, Quoy and Gaimard — Pallas. 
The tow-nets procured Diatoms, Sagitta, numerous Annelid larvae, Crustacea, and 
small Ijamellibranchs. 
Stations 306 and 306a (Soundings 453 and 454), Gulf of Penas to Sandy Point 
through Magellan Strait (see Chart 41). 
January 2, 1876 ; lat. 48" 17' to 48° 27' S., long. 74° 33' to 74° 30' W. 
Temperature of air at noon, 61°*3 ; mean for the day, 56°‘9. 
Temperature of water : — 
Surface, . 
o 
57 '5 
125 fathoms, 
46-0 
25 fathoms. 
49-.S 
150 „ . . 
46-0 
.50 „ 
47-2 
175 „ 
46-0 
75 ,, 
46-8 
200 „ . . 
46-0 
100 „ 
46-2 
Bottom (345 fathoms). 
46-0 
Density at 60° F. : — 
Surface, . 
/ 1-00480 
200 fathoms. 
. 1-02512 
) 1-01521 
300 
. 1-02503 
100 fathoms. 
. 1-02487 
Bottom, 
. 1-02515 
Depth, 565 and 345 fathoms ; deposit. Blue Mud, containing only a trace of 
carbonate of lime (see Murray and Renard, Deep-Sea Deposits Chall. Exp.). 
At 4 A.M. got up steam, and at 5 a.m. weighed anchor and proceeded out of Hale 
Cove. At 9 A..M. stopped and sounded in 565 fathoms (Station 306), and at 9.20 a.m. 
proceeded. At 11.30 a..m. stopped opposite Middle Island, and landed surveying and 
exploring j»arties. Sounded in 345 fathoms (Station 306a). Put over trawl. Obtained 
serial temperatures down to 200 fathoms. The carbonic acid was determined in water 
from the Ixittom, and amounted to 45’1 milligrammes per litre. At 1.15 p.m. trawl 
came up with many specimens. At 2 p.m. surveying and exploring parties returned. 
I’rocectlcd to sound through the Messier Channel. At 6.30 p.m. anchored in 17 fathoms 
in Gray’s Harbour. 
