SUMMAKY OF RESULTS. 
1181 
Lagena marginata (Walker and Boys). 
„ orhignyana (Seguenza). 
„ striata (d’Orbigny). 
„ sulcata (Walker and Jacob). 
Nodosaria calomorjpha, Eeuss. 
PatelUna comigata, Williamson. 
Truncatulina lohatula (Walker and Jacob). 
PulvinuUna harsteni (Eeuss). 
Rotalia heccarii (Linn4). 
Polystomella crispa (Linn4). 
„ macella (Fichtel and Moll). 
„ striatopimctata (Ficbtel and Moll). 
Surface Organisms. — The water in Port Stanley, Port William, and near the land 
was of a green colour, doubtless arising from the presence of great numbers of Diatoms 
(chiefly Coscinodiscus). In Stanley Harbour the tow-net yielded immense numbers of 
small beautiful Medusae. 
Station 317 (Sounding 467), Falkland Islands to Rio de la Plata (see Chart 42 
and Diagram 22). 
February 8, 1876 ; lat. 48° 37' S., long. 55° 17' W. 
Temperature of air at noon. 
50°'3 ; mean for the day, 48°‘9. 
Temperature of water : — 
Surface, 
46-7 
200 fathoms. 
38-6 
25 fathoms, 
42-3 
300 
38-0 
50 „ . . . 
40-0 
400 „ . . 
37-4 
75 „ . . . 
39'6 
500 
36-8 
100 „ . . . 
39-3 
Bottom, 
35-7 
Density at 60° F. : — 
Surface, 
1-02524 
200 fathoms. 
. 1-02523 
25 fathoms, 
1-02525 
300 
. 1-02523 
50 „ . . . 
1-02520 
400 „ . . 
. 1-02538 
100 „ . . . 
1-02522 
Bottom, 
. 1-02531 
Depth, 1035 fathoms; deposit, Sandy Gravel, containing 14’61 per cent, of 
carbonate of lime (see Murray and Renard, Deep-Sea Deposits Chalk Exp.). 
At 9 A.M. shortened and furled sails, and proceeded under steam to sound and trawl. 
At 9.30 A.M. stopped and sounded in 1035 fathoms. The sounding-tube contained no 
trace of the bottom. At 11 a.m. put trawl over and veered 1600 fathoms. Took serial 
temperatures down to 500 fathoms. The carbonic acid was determined in bottom water, 
and amounted to 38 ‘5 milligrammes per litre. At 3 p.m, commenced heaving in trawl, 
but at 3.55 p.m. trawl-rope carried away after the weights had come in. The rope 
appeared much chafed, indicating the probable stony nature of the bottom. In the 
tow-net attached to the weights were found a few specimens and some of the deposit, 
(summary of results chall. exp. — 1893.) 149 
Falkland 
Islands. 
Organisms from 
Surface-Nets. 
Station 317. 
