Book Notices. 303 
that, with practice and some slight modifications, it is the only one suited 
to the minute study of the cord, other methods seeming to me, after 
d with. 
Summary of Medical Science; edited by Watrer S. WELIs, 
M.D. 304 ages. 8vo. New York, Charles T. Evans.—This is an epi- 
n Med- 
I) 
Tepertory of the current views of the medical profession, especially 
to those who are not supplied with a very large variety of medical pe- 
Nnodicals, 
port, announced in our last, is a valuable contribution to our knowledge 
of the Cretaceous and Tertiary strata which cover by far the larger por- 
tion of the surface of Mississippi. e had marked for extract the 
remarks of Dr. Hilgard on the general relations of two great 
groups of strata, as unfolded in his Report, t of space compels 
valuable by the profiles of the Mississippi formations which are given, 
We hope to notice some points (both Geological and Agricultural) in 
this report again. : 
6. First Biennial Report of the progress of the Geological Survey of 
Michigan, embracing observations on the Geology, Zoology and Botany 
1861. 8vo.—A fragment only of the complete Report (270 pages) _has 
reached us. It is a satisfaction to see the work resumed in Michigan 
which Houghton so well began many years ago. In glancing at the 
hapter on Peat, which occurs abundantly in Michigan, we see no allu- 
sion to the valuable researches of Prof. Johnson made for the Connecticut 
State Agricultural Society, the agricultural value of which is such as to 
entitle them to special notice. When the complete Report reaches us 
We shall resume our notice. 
BROCHURES. 
ZOOLOGICAL AND ANATOMICAL. 
: f the Italian 
n the Rhi F: of the Mediterranean, compared with that 01 
me — Tertiary deposits By T. Rup#RT JONES, Esq., F.G.8., and W. K. Parker, 
“8q., Mem. M.8.° 1860. 8vo, pp. 16. 
B Synopsis of American Pdi an ol Brachiopoda. Proc, Acad. Nat. Sci., Jan. 1861. 
uetieae, aa from the 
On the Serville; with descriptions of four species 
Caves of attacks ant oe the Pacific Coast. Bost. Soc. Nat. Hist. By Samvg. 
H. Scupper, 
ynonymy of the y 
PLE Prrwe. Proe, Acad. Nat. Sci. vino _ the Muscular Fibres of the Ventricu- 
Mammal. ames PETTIGREW, Esq. 
ro : 
lar Portion of the Heart of the 
