216 GLAUCUS; OR, 
—an excellence which is the sure and only mark of 
a perfect mastery of the subject. Mr. G. H. Lewes’s 
“Sea-shore Studies” are also very valuable; hardly 
perhaps a book for beginners, but from his admirable 
power of description, whether of animals or of 
scenes, is interesting for all classes of readers. 
Two little “Popular” Histories—one of British 
Zoophytes, the other of British Sea-weeds, by Dr. 
Landsborough (since dead of cholera, at Saltcoats, 
the scene of his energetic and pious ministry)—are 
very excellent; and are furnished, too, with well- 
drawn and coloured plates, for the comfort of those 
to whom a scientific nomenclature (as liable as any 
other human thing to be faulty and obscure) conveys 
but a vague conception of the objects. These may 
serve well for the beginner, as introductions to Pro- 
fessor Harvey’s large work on British Alge, and 
to the new edition of Professor Johnston’s invalu- 
able “british Zoophytes.” Miss Gifford’s “ Marine 
Botanist,” third edition, and Dr. Cocks’s “Sea-weed 
Collector's Guide,” have also been recommended by 
a high authority. 
