942 
THE VOYAGE OF H.M.S. CHALLENGEE. 
vStation 238. Alc'iopa and other Annelids, Sct'phirina and other Copepods, Cirriped larvae, Squilla 
larvae, Euphausia, Lucifer, Atlanta, Pteropods and other small shells, Salpa, 
Appendicularia. The hauls of the tow-net from the surface were quite oceanic in 
character, but in a haul from 30 fathoms there were many Diatoms, Noctiluca, and 
Peridinium, which indicated that the influence of the Japan Stream in transporting 
brackish- water organisms extended thus far ; in a haul from 60 fathoms there were 
immense numbers of Doliolum and small blue Saljpse. The absence of Daphnia, always 
present near Japan and abundant on the previous day, was noticeable. 
Station 239. 
Station 239 (Sounding 381), Yokohama to Sandwich Islands (see Chart 36 and 
Diagram 17). 
June 19, 1875 ; lat. 35° 
18' N., long. 147° 9' E. 
Temperature of air at noon, 72° ‘5 ; mean for the day, 72°*0. 
Temperature of water : — 
Surface, 
70-2 
400 fathoms, 
41-6 
25 fathoms. 
68T 
500 
39-0 
50 „ . . 
64-1 
600 
38-1 
75 „ . . 
63-4 
700 
37-7 
100 
62-3 
800 
37-4 
125 
60-8 
900 
37-1 
150 
59T 
1000 
36-9 
175 
57-1 
1100 
36-7 
200 
55-1 
1200 
36-4 
225 
53-2 
1300 
36-1 
250 
51-3 
1400 
35-9 
275 
49-5 
1.500 
35-7 
300 „ . . 
47-7 
Bottom, 
35-1 
Density at 60° F.: — 
Surface, . 
. 1-02577 
200 fathoms. 
. 1-02560 
50 fathoms. 
. 1-02585 
400 „ . . 
. 1-02526 
100 „ 
. 1-02575 
Bottom, 
. 1-02572 
Depth, 3625 fathoms ; 
deposit, Red Clay, containing no 
carbonate o 
Murray and Renard, Deep-Sea Deposits Chalk Exp.). 
At 8.10 A.M. got up steam, shortened and furled sails, and proceeded under steam. 
.Vt 10 A.M. sounded in 3625 fathoms. At 1 p.m. obtained serial temperatures down to 
1500 fathonus. At 3.30 J’.m. completed temperatures and made sail. 
Distance at noon from Honolulu, 3011 miles. Made good 157 miles. Amount of 
• urrent for past two days 35 miles, direction N. 9° E. 
