816 
THE VOYAGE OF H.M.S. CHALLENGER. 
Station 210. 
Org.vnisms from 
Si!RFACK-NeT8, 
Station 210a. 
Station 211. 
Surface Organisms. — The following are recorded in the note-books from the surface : — 
Peridinium, large Diatoms, Pijrocystis, Globigenna, Sagitta, larval Annelids, larval 
Crustaceans, Atlanta, Pterotrachea, Pteropods, Appendicularia, young fishes and 
fish eggs. 
Station 210a (Sounding 347), Manila to Samboangan (see Chart 31). 
January 26, 1875 ; lat. 9° 15' N., long. 124° 38' E. 
Temperature of air at noon, 79°’5 ; mean for the day, 79°’7. 
Temperature of water at surface, 80° *7 ; bottom, 57° ’1. 
Density at 60° F. at surface, 1 ’02520. 
Depth, 185 fathoms; deposit. Blue Mud, containing 17 ‘00 per cent, of carbonate 
of lime (see Murray and Eenard, Deep-Sea Deposits Chalk Exp.). 
In the forenoon continued under steam towards Camiguin Island. The volcano 
was seen to emit large volumes of steam, proceeding from the crater and several 
fumaroles on its slope. At noon stopped about two miles N.W. of the volcano. At 
1 P.M. sounded in 185 fathoms. Sent off cutter with a party of naturalists to examine 
the volcano. Proceeded for anchorage off the village of Abajo to the N. of the 
volcano. At 1.30 p.m. stopped and came to in 6 fathoms, between the shore and a 
yellow sandy patch off Abajo. At 5 p.m. got up steam. At 5.30 p.m. naturalists 
returned from shore with several birds and geological specimens. At 6 p.m. made sail 
and proceeded towards Samboangan. 
Station 211 (Sounding 348), Manila to Samboangan (see Chart 31 and 
Diagram 14). 
January 28, 1875 ; lat. 8° 0' N., long. 121° 42' E. 
Temperature of air at noon. 
81°'8 ; mean for the day, 80°’2. 
Temperature of water ; — 
•Surface, .... 
81*0 
200 fathoms, 
53-8 
25 fathoms, 
790 
250 „ . . . 
52-8 
50 
73 0 
300 „ . . . 
61-8 
75 „ . . . 
660 
400 „ . . . 
50-5 
100 
61 0 
Bottom, 
50-5 
150 „ . . . 
560 
