416 Proceedings of Royal Society of Edinburgh. [sess. 
(1) Blue Mud is introduced off the coasts of Jamaica and Haiti. 
(2) Pteropod Ooze is introduced northward from Jamaica 
through the Windward Channel, again off the southern 
entrance of Turk’s Island Passage, and again near the 
island of Bermuda at the northern end of the series. 
(3) Coral deposits are introduced off Turk’s Islands ; and 
(4) The deep-water Red Clay area is extended and approaches 
closer to the coast of Turk’s Islands than shown on the 
map referred to. 
. ! In the following table we have collected together the informa- 
tion regarding this series of deposits, giving the number, date, 
position, depth, type of deposit, estimated percentage of carbonate 
of lime, with a few remarks on the varying character of the 
bottom. This table is followed by detailed descriptions of a few 
of the typical samples representing the different kinds of deposits, 
and by a general description of the map which accompanies this 
paper. 
[Table. 
