SUMMARY OF RESULTS. 
147 
Station 9 (Sounding 53), Tenerife to Sombrero (see Chart 6 and Diagram 1). 
February 26, 1873 ; lat. 23° 23' N., long. 35° 11' W. 
Temperature of air at noon. 75°’3 ; mean for the day, 70°T. 
Temperature of water at surface, 69 o, 0 ; bottom, 36°‘8. 
Density at 60° F. at surface, 1 ‘02778 ; bottom, 1 ‘02653. 
Depth, 3150 fathoms ; deposit, Red Ck/y, containing 3'11 percent, of carbonate of 
lime (see Murray and Renard, Deep-Sea Deposits Chall. Exp.). 
At noon sounded in 3150 fathoms; while sounding a current-drag was put 
down to a depth of 200 fathoms, and during the whole operation the ship scarcely moved 
from her position. At 2.15 p.m. the dredge went down with two swabs, and, attached to 
the iron bar below the dredge, a Hydra-detaching instrument with 3 cwt.; two weights 
of 1 cwt. each, were attached to the line 200 fathoms in advance of the dredge, 3600 
fathoms of line being paid out. At 4.45 p.m. commenced heaving in dredge, which came 
up at 10.15 p.m. quarter full of Red Clay. This was the deepest dredging which had up 
to that time been taken. The stem of the Hydra-machine had gone deep into the deposit, 
and was bent apparently by the dredge and weights falling upon it. The dredge had 
taken a deep scoop of the clay, and the line was entangled in a coil over the- weights. 
Sombrero Island distant at noon, 1607 miles. Made good 124 miles. Amount of 
current 14 miles, direction S. 60 W. 
Foraminifera (Brady, Zool. pt. 22). — The following species of Foraminifera were 
observed during the examination of the deposit at this Station (see also Murray and 
Renard, Deep-Sea Deposits Chall. Exp.) ; the pelagic species, which make up about 70 
per cent, of the carbonate of lime present in the deposit, are marked thus x : — 
Hyperammina ramosa, Brady. 
Reophax nodulosa, Brady. 
Haplophragmium rotulatum, Brady, 
x Globigmna bulloides, d’Orbigny. 
x „ inflata, d’Orbigny. 
x „ pachyderma (Ehrenberg) (•). 
x Globigerina rubra , d’Orbigny. 
x Orbulina univerra, d’Orbigny. 
Truncatulina pygmsea, Hautken. 
x Pulvinulina crassa (d’Orbigny). 
x „ menardii (d’Orbigny). 
x ,, micheliniana (d’Orbigny). 
Two species of Radiolaria ( Haliomma horridum, Stohr, and Octopyle hexctstyle, 
Haeckel) were also observed in the deposit, of which Professor Thomson wrote : “ In the 
last few Stations the mud has been gradually altering its character, becoming less calcareous 
and less rich in Foraminifera. This mud consists almost entirely of reddish clay in a 
state of excessively fine division ; it scarcely effervesces with acid, and there is an almost 
total absence of calcareous shells. No living thing could be detected except one or two 
Foraminifera with tests of fine brown grains.’ 
Station 9 
Organisms from 
the Deposit. 
