PRELIMINARY REPORT. 87 
In the western Pacific the line run by. the “Challenger” from the 
Admiralty Islands to Japan, shows the following :* 
At Station 220, lat. 0° 42’ S., long. 147° E., 1100 fathoms, Globigerina 
ooze,” seven species of Radiolarians were obtained from the bottom deposit. 
The Radiolarians from the deposit at Station 224, lat. 7°46’ N., long. 
144° 20’ E., in 1850 fathoms, were represented by nearly thirty species, and 
by about sixty species of Foraminifera, 88 per cent of the carbonate of 
lime of the deposit being represented by pelagic species. 
At Station 225, lat. 11° 24’ N., long. 143° 76’ E., in 4475 fathoms, Radio- 
larian ooze; over 350 species of Radiolarians are noted from the deposit, 
‘and ten from the surface. The deposit indicates only a trace of carbonate 
of lime, while at Station 226, lat. 14° 44’ N., long. 142° 13’ E., in 2300 
fathoms, the red clay contains 6.11 per cent of carbonate of lime, and in 
2475 fathoms, Station 227, lat. 17° 29’ N., long. 141° 21’ E., only a trace 
of carbonate of lime occurs, as well as at Stations 228, 229, 230, 231. 
At Station 229, lat. 22° OV’ N., long. 140° 27’ E., in 2500 fathoms, red 
clay, the deposit was characterized by numerous Diatoms. At Station 231, 
lat. 31° 08’ N., long. 137° 08’ E., in 2250 fathoms, blue mud, the number 
of species of Radiolarians in the deposit was greatly reduced, not more 
than ten being noted at that station. 
It is interesting to note in the line Admiralty Islands to Yokohama that 
the Globigerina ooze is found in what we may call, in a general way, the 
equatorial current, between Stations 220 to 224, while the Radiolarians 
extend as far north as Station 231, taking their greatest development, 
apparently, in the belt of the trades, from Station 225 to Station 230. On 
the line from Yokohama to the Hawaiian Islands blue mud was brought 
up at the first station east of Japan, No. 237, in 1875 fathoms, with 4.45 
per cent of carbonate of lime, made up of about 100 species of Foramini- 
fera, 33 per cent of the carbonate of lime in the deposits being made up 
of pelagic species. The deposit at this station is also characterized by the 
large number of species of Diatoms it contains. Globigerina ooze was 
brought up only at Station 246, in 2050 fathoms. At all the other stations 
1 John Murray, Observations at each of the “ Challenger ” Stations. 
2 See Murray and Renard, Voyage of the “ Challenger,” Deep-Sea Deposits. 
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