976 
THE VOYAGE OF H.M.S. CHALLENGER. 
Station 252. 
A.MX.&US FROM 
Trawi_ 
Oroaniam.i from 
T ill DironiT. 
Density at 60° F. : — 
Surface, . 
. 1-02535 
300 fathoms, . 
. 1-02514 
35 fathoms. 
. 1 02511 
400 „ 
. 1-02518 
75 „ . . 
. 1-02522 
850 
• 
. 1-02.546 
130 „ 
. 1-02532 
2640 
. 1-02527 
225 „ . . 
. 1-02527 
Bottom, 
. 
. 1-02567 
Depth, 2740 fathoms; deposit, Red Clay, containing only a trace of carbonate of 
lime (see Murray and Renard, Deep-Sea Deposits Chall. Exp.). 
At 3 A.M. shortened and furled sails, and got up steam. At 4.30 a.m. proceeded 
under steam. Put trawl over, veering 3500 fathoms. At 7 a.m. sounded in 2740 fathoms. 
Obtained serial temperatures down to 1500 fathoms. The carbonic acid was determined 
in bottom water, and amounted to 42’0 milligrammes per litre. At 1.10 p.m. commenced 
heaving in trawl, which came up much torn at 4.20 p.m., but containing many hundreds, 
of manganese nodules (the nuclei of which consisted of pumice, volcanic glass, and 
Carcharodon, Oxyrhina, and Lamna teeth), and one or two living animals. Swung 
ship to ascertain error of compasses, and at 6 p.m. proceeded under steam. Albatrosses 
and stormy petrels were seen. 
Honolulu distant at noon, 1002 miles. Made good 57 miles. Amount of current 
14 miles, direction N. 43° E. 
The following species are recorded in the Zoological Reports from the trawl 
at this Station : — 
IsopoDA (Beddjird, Zool. pt. 48). 
Eurycope intermedia, n.sp. One specimen ; obtained at no other locality. 
ScTiizoPODA (Sars, Zool. pt. 37). 
Boreomysis ohlusata, n.sp. One specimen ; obtained also at Station 232. 
In addition to the foregoing, a fragment of arm of EHsinga and backbone of small 
fish were attached to the trawl-net, and Professor Thomson remarks that a small starfish, 
probably a Ilymenaster, fell off the net as the trawl was being taken in. 
Radiolaria (Haeckel, Zool. pt. 40). — The following species of Radiolaria were 
oliservcd in the deposit from this Station (see also Murray and Renard, Deep-Sea 
De|)Osits Chall. Exp.): — 
Sijifumottphtrra ^rpula, Haeckel. 
C’lalhrotpfurra rJrrumlexia, Hac'ckcl. 
Thfmryriit prfmrpinac^, Haeckel. 
AulttgraphU hfsanrUtra, Haeckel. 
Anlfjrero$ dirraruvter, HaeckdI. 
AtUoiqiathiit triodon, Haeckel. 
Challentjeron triangulum, Haeckel, 
ConchelUnm tridacna, Haeckel. 
Conckopeis compreesa, Haeckel. 
