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but it must be taken into consideration that the trawl was at work for 
some hours and dragged for some considerable distance. 
Station 4. 10th April 1910 
Lat. 48° 27' N., long. 8° 36' W. ; depth 1000 m. (547 fms.). 
The specimens from this locality consist of a piece of a moulded coal 
briquette (4 x 3| x 3 inches), three fragments of furnace clinker (the largest 
4|x3x2 inches), and one small piece of coal showing a sort of “cone in 
cone” structure. 
The piece of briquette, which is nearly a cube, has serpulse attached to 
all sides but one, upon which it has evidently lain, and seems not to have 
sunk into the ooze. All the above material has doubtless fallen overboard 
from ships. Briquettes made of coal-dust compacted by tar have been in 
use for only a very short time. 
According to the investigations made in the “ Challenger ” office, the 
deposit at this Station is globigerina ooze with 70 per cent, calcium 
carbonate and a large percentage of bottom-living foraminifera. Mineral 
particles with a mean diameter of 0T2 mm. make up half the residue. 
Station 10. 19th to 21 st April 1910. 
Lat. 45° 26' N., long. 9° 20' W. (Bay of Biscay); depth 4700 m. (2657 fms.). 
Globigerina Ooze. 
The material from this Station consists of 339 rock specimens varying 
from -J- inch to over 2 inches in greatest diameter, 70 pieces of furnace 
clinker and cinder, and 10 small fragments of coal. 
Of the rock specimens about 200 were individually determined, while 
the rest, which are mostly under \ inch in diameter, were either too small 
or too much decomposed for correct determination, but small though these 
fragments be, examination with the lens shows that many of them are 
glaciated. 
Sedimentary Rocks . — Among the sedimentary rocks represented are 
two small fragments of greywacke like those from Station 95, one of which 
is striated and the other ice-moulded. 
One small fragment, glaciated on one side, is like the “ Glengariff Grits ” 
of Devonian age from the Dingle Peninsula in the south-west of Ireland.* 
* Rock specimens of this type have been identified in the material brought up from 
parts of the sea-floor lying between the present Station and Station 95 in connection with the 
laying of the “ Atlantic cables.” They also occur as boulders on the Scilly Isles. 
