254 
NOTICES OF BOOKS. 
district, as this varies very much in different localities. Much still 
rem 
nt same 
separated from it 
r. Geo. Murra; 
ains to be done, and we trust that Mr. Gibson will continue his 
researches, and publish, at no distant date, a more extended list. 
In th i 
volume with Mr. Gibson’s Revised List, and 
by only a few papers, is an important paper by 
which deals with a subject that has attracted 
y> 
from algologists but little of the attention it deserves. This essay 
is full of interest 
on foreign shores 
being true now. 
from beginning to end, and should be in the hands 
is meagre in the extreme,’’ this is very far from 
been made to bring these scattered records together. The labour 
of sorting and arr 
fying themselves 
anging the material at their disposal, and satis- 
of the identity or not of the species recorded, 
' mis- 
without which any results arrived at would be useless and 
Mr. Murray must 
all the difficulties 
in his way in compiling the interesting “table” 
which accompanies his essay. This table shows at a glance how 
any two of the three 
species are common 
widely separated regions Bi Arctic Sea, the West Indian region, 
and Australia) selected 
y Mr. Murray for a comparison of their 
have therefore reproduced the table here in the hope that it may 
: an interest in a subject the investigation of which promises 
such interesting results, E 
. . . 
