NARRATIVE OF THE CRUISE. 
803 
Date. 
1875. 
Station. 
Velocity of wind 
in miles per hour. 
Force of wind by 
Beaufort’s scale, as 
noted in log. 
October 
6 
281 
13 
2 
33 
9 
283 
25 
5 
33 
11 
284 
7 
1 to 2, mean 1^ 
33 
14 
285 
14 
3 
33 
19 
287 
14 
2 to 3, mean 2J 
33 
21 
288 
9 
1 to 2, mean 1J 
33 
25 
290 
17 
3 to 4, mean 3J 
33 
27 
291 
19 
6 to 4, mean 5 
November 
1 
293 
24 
5 
33 
1 
293 
21 
4 to 5, mean 4J 
33 
5 
295 
9 
1 to 2, mean I f 
33 
5 
295 
6 
1 
33 
9 
296 
22 
5 to 6, mean 54 
33 
9 
296 
24 
5 
33 
11 
297 
3 
0 to 1, mean 
33 
17 
298 
15 
2 to 3, mean 2J 
As might be expected from the undulating nature of the bottom, and the varying 
distance from land, the deposits presented considerable variety during the trip between 
Tahiti and Valparaiso. In all depths less than 2000 fathoms the deposit was a Globigerina 
ooze with over 50 per cent, of carbonate of lime, the highest percentage being 84 
in 1600 fathoms. As the 40th parallel south was approached the purely tropical 
species of pelagic Foraminifera — such as Globigerina conglobata, Sjohceroidina delviscens, 
Pulvinulma menardii, var. turnida, Pulleriia obliquiloculata — disappeared both from the 
surface waters and from the deposits at the bottom. At the depth of 1600 fathoms 
above referred to the deposit was chiefly composed of the following species, which were 
mostly dwarfed : — Globigerina bidloides, Globigerina injlata, Globigerina dubia, 
Globigerina cequilateralis, Orbulina univ,ersa, Pulvinulina canariensis, Pulvinulma 
micheliniana, and Pulvinulina menardii. There were a few fragments of Pteropods in 
one or two of the deposits from the shallower depths, but with this exception the shells 
of pelagic Mollusca were entirely removed from the bottom. 
