Geology and Natural History. 491 
Third Appendix to the Fifth Edition of Dana’s System of 
Disienwoos by Epwarp S. Dana. 186 pp. 8vo. New Yor 
(John Wiley & Sons).—This Third Appendix is stated to be de- 
on is 
Bouble the size ay the pr ae tem It contains 5 fall qeeecptois 
of all species announced as new, some three hundred in number, 
and also references to all mineralogical memoirs, published during 
this period. From the latter many new analyses are quoted and 
new facts in regard to physical chataceete and localities. A list 
of punches pie works and of mineralogical journals is given in 
the ene 
3. The nae “Monticulipora. —Mr. §. A. Mutter has an arti- 
cle in the Journal of the Cincinnati Society of Natural History, 
for April, 1882 (v, p. 25), showing that the subdivisions of this 
genus of fossil nN he by Professor H. A. Nicholson in his 
recent memoir, base specimens from the Cincinnati group, in 
Ohio, have various olgestinns and criticising other points in the 
memoir. 
4. Handbook or riage hard ae for Laboratories and 
Seaside Work: ; W.K.B s, Ph.D., Associate in Biology 
and Director of ie Chesapeake Zoological Laboratory of the 
Pics Hopkins University. 392 pp. 8vo. Boston, 1882. (8. E. 
Cassino,)—An excellent work, well adapted for its purpose by its 
: icious arrangement and detailed directions for investigation, 
and its numerous and admirable illustrations, and attractive also 
- in ga aaa ag oe ae is just the and-book wes a wg student 
tain metallic oxides, and whether plants in a soonealy healthy 
State will gael such oxides through their roots. The conclu- 
sions reached w 
— (1.) That ne aliey plants, grown under favorable conditions, 
— ihe h their roots small quantities of lead, zinc, 
7 mt (@) That | er) ia zine may enter the tissues in this way with- 
out causing any disturbance in the growth, nutrition, and fune- 
tions of the plant. 
