Botany and Zoology. 247 
in his text-books and manuals,—how to herborize, with full partic- 
ulars and, indeed, figures, of all the implements he can possibly 
ire; how to prepare his specimens for the herbarium, and to 
arrange and manage the same; what books are most needed ; 
what and where the principal public herbaria of the United States 
flora, are to be separately issued, with a brief letter-press, under 
Me 
west of Greenland; by P. Martin Duncan and W. Percy S3ia- 
DEN. Large 4to, 82 pp., six lithographic plates. London, John 
Van Voorst, 1881.—This work is of special importance to Ameri- 
can naturalists interested in this group of animals, for a large 
Proportion of the species treated are found upon the New Eng- 
land coast. All the species are described in detail and nearly all 
of them are well illustrated. The whole number of species is 
Oreula Barthii, are New England species, and the latter occurs 
on George’s Bank and off Nova Scotia. Eight of 
fishes occur on the New England coast, the ninth (Asteracanthion 
Gulf of St. Lawrence and. off 
Nova Scotia, and only one is, so far as known, peculiar to the 
authors have included, erroneously, I believe, as the young of Cucumaria 
frondosa, the form that is regarded by me, and many others, as a distinct species — 
{Pentacta minuta). 
Am. Jour. Scr.—Tatgp Serres, Vou. XXIII, No. 135,—Marox, 1882, 
17 
