078 THE VOYAGE OF H.M.S. CHALLENGER. 
Station 25.3. Density at GO'' F. ; — 
Surface, . 
. 1-02536 
300 fathoms. 
. 1-02517 
25 fathoms. 
. 1-02504 
400 „ 
. 1-02537 
50 „ 
. 1-02502 
800 
. 1-02524 
100 „ 
. 1-02534 
3000 
. 1-02578 
200 „ 
. 1-02517 
Bottom, 
. 1-02569 
Depth, 3125 fathoms; deposit, Red Clay, containing only a trace of carbonate of 
lime (see Murray and Renard, Deep-Sea Deposits Chall. Exp.). 
At 4.35 A.M. stopped and sounded in 3125 fathoms. At 6 a.m. put over small dredge 
with swabs and tow-nets at the dredge and weights. At 9 a.m. obtained serial 
temperatures down to 1500 fathoms. The carbonic acid was determined in water from 
400, 800, 2990, and 3090 fathoms, and amounted respectively to 397, 23’8, 25’5, 
30’1 milligrammes per litre. At I p.m. commenced heaving in dredge, which came up 
at 4.40 P.M. with some manganese nodules and a few specimens, and the tow-nets also 
contained some deposit and manganese nodules. One of the nodules measured 
12x8x2 inches, and had on its upper surface attached Foraminifera, Serpula-twhe^, 
four specimens of Stephanoscyphus, Polyzoa, Ascidians, while to the under surface some 
Annelids were attached. At 5 p.m. proceeded under steam. Albatrosses continued to 
follow the ship. 
Distance at noon from Honolulu, 1015 miles. Made good 93 miles. Amount of 
current 1 1 miles, direction N. 
An'imals from 
Dredge. 
The following species are recorded in the Zoological Reports from the dredge at this 
Station : — 
Annklida (MTntosh, Zool. pt. 34). 
Lewna ahyssorum, n.sp. One specimen ; obtained at no other locality. 
Placosteyus ornatus, Sowerby. One specimen ; obtained also at Stations 244 
and 285. 
,, hcnthalianus, n.sp. One specimen ; obtained at no other locality. 
IVjlyzoa (Busk, Zool. pt. 30). 
Jiuf/nla johnstoniw, Gray. Fragmentary specimens. 
liifrxxnria (ihi/ssicola, n.g., n.sp. Obtained at no other locality. 
CrihriUna monoceros (Busk). For distribution see Station 145. 
Pliylactella sp. (?). Fragmentary specimens. 
Ti'NICata (Ilerdman, Zool. pt. 38). 
liathyoncus minutus, n.g., n.sp. One specimen ; obtained at no other locality. 
