SUMMARY OF RESULTS. 
1197 
Surface Organisms. — Young Pleuronectids {Solea ?) are recorded by Gunther (Zoo], 
pt. 78) from the surface at this Station, and in addition the following are recorded in 
the note-books : — Peridinium, Diatoms, many Acanthometrae and other Radiolaria, 
Infusoria, Medusae, Sagitta, many Daphnids, Copepods, Cirriped larvae, Zoeae, 
Appendicularia, fish eggs, &c. 
Station 323 (Sounding 473), Rio de la Plata to Tristan da Cunha (see Chart 16, 
and Diagrams 6 and 22). 
February 28, 1876 ; lat. 35° 39' S., long. 50° 47' W. 
Temperature of air at noon, 73°'8 ; mean for the day, 72°‘3. 
Temperature of water : — 
Surface, . 
73-5 
600 fathoms. 
37-8 
25 fatLoms, 
71-5 
700 „ 
37-0 
50 „ . . 
69-5 
800 „ 
37-0 
75 „ . . 
67-5 
900 „ 
37-0 
100 „ 
65-5 
1000 
37-0 
125 „ . . 
63-5 
1100 „ 
37-0 
150 „ 
61-5 
1200 „ 
37-0 
175 „ 
59-5 
1300 
37-0 
200 
57-5 
1400 
37-0 
225 „ 
55-5 
1500 „ 
37-0 
250 
53-5 
1600 „ 
36-3 
275 „ 
51-5 
1725 „ 
34-8 
300 „ 
49-5 
1825 
33-8 
400 „ 
42-0 
Bottom, 
33-1 
500 
38-9 
Density at 60° F. ; — 
Surface, 
. 1-02670 
300 fathoms, 
. 1-02579 
25 fathoms. 
. 1-02671 
400 „ 
. 1-02643 
50 „ . . 
. 1-02684 
800 
. 1-02657 
100 „ 
. 1-02661 
Bottom, 
. 1-02641 
200 „ . . 
. 1-02616 
Depth, 1900 fathoms ; deposit, Blue Mud, containing 3 '04 per cent, of carbonate of 
lime (see Murray and Renard, Deep-Sea Deposits Chalk Exp.). 
At 5 A.M. shortened and furled sails, and proceeded under steam to sound and trawl. 
At 6 A.M. sounded in 1900 fathoms. At 7 a.m. put trawl over and veered 2500 fathoms. 
Took serial temperatures down to the bottom. The carbonic acid was determined in the 
bottom water, and amounted to 43‘0 milligrammes per litre. At 1 p.m. commenced 
(summary of results chall. exp. — 1893.) 151 
Station 322. 
Organisms fro.m 
Surface-Nets. 
Station 323. 
