209 
THE ALGH OF THE CLYDE SEA AREA. 
(Wir Map.) 
Tue following o> sort gee of the sheen and biological con- 
ditions of the Clyde Sea area, and the map which illustrates ran oe 
of A cee in the area, and for the purpose of infor possessors of 
herbaria of the aims of the Committee for the Exploration of the 
arine Flora of Western Scotland. Prof. Bowe , Glasgow 
P 
University, has promised a list of localities from the herbarium of 
the late Walker Arnott. Similar services will be duly acknowledged 
in the Report on the Marine Flora of Western Scotland, of which 
Part I., The Clyde Sea Area, now chiefly engages the attention of 
the Committee. In its final form the distribution of the Algwx of 
the Area will be given according to the natural basins deniitibed: by 
Dr. Murray. Gzorce Murray (Secretary). 
British Museum, Natural History, Cromwell Road, London, 8.W. 
THE CLYDE SEA AREA. 
By Joun Murray, LL.D., Ph.D., &e. 
Tue Clyde sea-area is a natural system of deep-sea mar eaA 
lochs in the west of Scotland, communicating southward wi 
Trish Channel by a eatie. pening between the Mull of asta se 
the shores of Weton 
m 
The greatest depth is 107 fathoms, and the mean depth about 
29 fathoms. About 1-1 cubic om aileg of water are added and 
withdrawn at each tide. The land to the eastward of the sea-area 
is comparatively low, while that the north and- areas inte 
which the sea-lochs Len ehy is for the most part s 
pe ees rising at some points to over 2000 ft. above oe 
seaward portion of the area comprises: (1) the Plateau, with 
an na “of 313 square miles, over which there is an average depth 
JournaL or Botany.—Vou. 29. — [Juny, 1891.] P 
