Say re 
History of Conchology in the United States. 177 
and also Separately, a “Supplement to the Terrestrial Mollusks,” 
forming vol. iv of that work in 8vo, pp. 207, with six colored 
plates. This volume, which exhibits great ability and an inti- 
mate knowledge of his subject, placed its author at once in the 
foremost rank of American conchologists. It not only describes 
€ more recent species, but also includes a thorough revision 
of those contained in his father’s work, giving additional synony- 
my and localities, 
_ Mr. Binney has published a number of papers in the Proceed- 
Ings of the Academy of Natural Sciences, 1857-61, under the 
general title of “Notes on American Land Shells.” These pa- 
pers contain descriptions of many new species, and a complete 
;/Ronymy of our Helices. He has prepared for the Smithsonian 
Institution lists of the Terrestrial and Fluviatile Gasteropoda of 
orth America, He also edited, recently, in an able manner, a 
hew and splendid edition of the conchological writings of Say. 
ante, page 163. : 
Mr. Binney is at present engaged in an extensive work for the 
Smithsonian Institution. He is preparing for them descriptions 
of our Terrestrial and Fluviatile Gasteropoda, for aoe g publi- 
‘ation and free distribution. He has also just completed a work 
On the Synonymy of American Shells, forming a very large 
oie MSS. extending to several hundred pages. _ 
he publication of these works will mark a new era in the 
having hitherto proved a discouraging barrier to persons of lim- 
me, 
Wats comprehensive Report to the British Associ 
Soni Moil : . 
‘Ten Institution. It has also published, recently, a volume o 
ures on Mollusca ” b this ntleman. : 
. D. Brown of Puabeicill NJ, has just published in = 
. We have thus noticed the principal writers on shells, in Amer- 
to the present time. We must regret that want of space has 
AM. Joun, Sci.—Sgcoxp Szries, Vou. XXXII, No. 98—Mancu, 1862. 
23 
