196 Recent Literature. [ March, 
given without pecuniary recompense. In my own judgment, 
Prof. Hayden has acted with the most enlightened view in author- 
izing and encouraging such natural history investigations as would 
be facilitated by explorations of the country in which his geologi- 
cal surveys were conducted. With the exception of the cost of 
publishing the present report, the only additional expense to which 
put the survey during my Se in the West amounted to 
about $222.” The same may be of at least one other of the 
bulky quarto volumes of the ae and we suppose of others. 
The number of species of these fresh-water Rhizopods living in 
our country is unexpectedly large; numbers of them are common 
to Europe and North America, and many are found not only in the 
Eastern States but also in the lakes of the Uintah mountains of 
Wyoming, showing that the forms are well nigh cosmopolitan. 
They occur in the summer time on the under side of floating leaves 
of water plants and especially among Sphagnum moss. *“ ‘A dr rop 
of water squeezed from a little pinch of bog-moss has often yielded 
scores of half a dozen genera and a greater number of species.’ 
RECENT Books AND slag ost Ns Mic eerie in Medicine. By Lionel S. 
Beale, M.B., F.R.S., etc. Fou dition ; illustrated, and much enlarged. 8vo, 
pp. I-XXXI, 1-539. London, Churchill Philadelphia, Lindsay & Blakiston. 1878. 
Danalite from the Iron Mine, Bartlett, New Hampshire—Picrolite from a Serpen- 
tine heat in Florida. By M. E. Wa dsw orth, Ph.D. (Proc. Bost. Soc, Nat. Hist., 
xx, Oct. 1, 1879.) Pages 284-287. Fron the author. 
A iiritidtion to the Ornithology of Minnesota, Being notes upon Summer 
Birds rs Grant and Traverse Pereri _ (Nuttall Ornith. Club. Bulletin, Vol. v, No. 
1, 1880, pp. 11-20.) From the 
Bulletin of the United States Geological and Geographical Survey of the Terri- 
tenet , Vol. v, No. 3. 8vo, pp. 331-520. Government Printing Office, Washing- 
n, 1879. Prot the Survey. 
The American Monthly Microscopical Journal, Vol. 1, No. 1, Jan., 1880. New 
York, Thompson & Moreau, 51 and 53 Maiden lane. Pec the editor 
rt of ee Explorations during 1878-79, with maps sak sections. 
Jam niga ctor, C.M.G., M.D., F.R.S., apk ctor. 8vo, pp. 135, pls. 6. Wellington, 
New 3 Zealand, 1879. From the direct 
_The Journal of the Cincinnati Society of esi History, July, 1879, Vol. 11, No. 
2. 8vo, pp. 71-118, pls. g-10. From the society. 
Le a Journal des weiss a Ja Nouvelles. rre Année, No. 16, 
Nov. — aris, 23 rue dela Monnaie. Emile Deyrolle, Directeur. 
nspectus ye clear et geographicus mammaliu m tam viventium quam fos- 
t iqu 
rou 
Marius Aubert. Fascicule 1—Primates (Simiæ, Prosimæ, ae agree ae de 
la Revue et Magasin de Zoolo ogie, 1878.) 8vo, pp. 93. From the au 
Atti della Societa Toscana di Scienze Naturali residente in Pisa, “nae verbali, 
Vol. 1. hs ae 16, 1879. From the soci 
Report of the Commissioners of Fisheries of the State oe California for the years 
sets and 1879 8vo, pp. 63, Sacramento, 1879. From the commissioners. 
n New England Isopoda. By Oscar Harger. (Proc. U. S. National Mu- 
eg ae $60, pp. 157-165, no > date. From the author, 
A comparison of the Eocene Mollusca of the South-eastern United States : 
Western Europe in relation to the determinstion of identical forms. By Ange 
