22 
Sea temperature at surface, 104 C. to 11%) C.; 
bottom, 10°°6 C. to 1192 C.; 
Specific gravity of sea at surface, 1025 to 1027; 
a4 bottom, 1:025 to 1°027. 
The positions of the hauls are shown on the sketch 
chart below. 
The results of these hauls demonstrate strikingly the 
99 bi] 
restricted distribution of fishes on an area of very limited 
re . ; aN 
{ wat SK 
Sandhead x 
\ SS 
\ —S 
< a x 
Ny 
(Port William 
\ \ 
mS \ LUCE BAY 
( baronet 
ha, = aa 
NS Mull of Galloway 
Chart of Luce}Bay. 
extent, and over which the physical conditions, which 
might be supposed to influence the abundance and nature 
of the bottom fauna, are very similar. The chart shows 
that fishing was restricted to the west and north-west 
margins of the bay. The bottom was uniformly sandy, 
and the depth varied from 9 to 5 fathoms. Hauls 1 to 
3 are comparable in all respects; the depth varied from 
