260 J. Murray on Sea-bottom Deposits, 
to exist as a narrow band around the land, and had usually a 
considerable admixture of clayey matter and mineral particles 
Where there was much clayey matter we found oil a few 
rough red casts of the Foraminifera. 
The following is a list of the depths of the soundings included 
under coral-muds :— 
At Bermuda. At other places. 
fms fms. fm 
2250 2100 1250 460 140 25 | 
1820 1950 1575 390 210 100 
950 2650 1500 625 610 40 
430 1325 200 18 70 90 
1375 1075 37 240 25 100 
2450 315 16 
255 
least such is the sense in which it is here used. We di ‘. 
find a Globigerina-ooze in any of the enclosed seas, in the pet , 
ern Ocean south of lat. 50° S., nor in the North Pacific north 0 
0° N 
In the Southern Ocean only one small species of Cre 
was found in the surface-waters; but in the North Pacific bre 
varieties of pelagic Foraminifera abound near the surface of 
) 
idee nd 
unknown umber of varieties occur both as to colt 
compositio Some specimens are nearly pure whit ae 
solving away the carbonate of lime, is in some speci glate-b 
dant, in others not abundant, and is either of a red wes 
color. We find the former color to prevail in those so 
