Geology and Mineralogy. 427 
This corresponds to Cu,Cl, the composition of the original nanto- 
kite from Chilii— Proc. Roy. Soc. N. S. Wales, vol. xxviii. 
9. A contribution to the Mineralogy of Wisconsin; by W. HU. 
Hoszss. Bulletin of the University of Wisconsin Science Series, 
vol. i, No. 4, pp. 109-156, pl. 4-8. Madison, 1895.—Protessor 
- Hobbs has given in this bulletin an account of some minerals 
from Wisconsin, especially of the species calcite, galena, cerus- 
site, sphalerite, etc., found in cavities in the Galena limestone in 
the southern part of the state. A number of new forms are noted, 
as on sphalerite, calcite, cerussite and azurite. Some interesting 
notes are added in regard to the diamonds found in the glacial 
drift of Wisconsin; these include three large stones (16, 324, 214 
carats) and a number of small ones. 
10. Tabellarische Uebersicht der einfachen Formen der $2 
krystallographischen Symmetriegruppen zusammengestellt und 
gezeichnet von Dr. EK. A. WoLFING. Stuttgart, 1895 (E. Schweizer- 
bart’sche Verlagshandlung—K. Koch).—In seven large plates the 
author has presented the forms with their several grades of sym- 
metry belonging to each of the crystalline systems. A spherical 
projection accompanies each group and a brief explanatory text 
is added. 
11. Lhe Mineral Industry, its Statistics, Technology, and Trade 
in the United States and other countries to the end of 1894 
(Statistical Supplement of the Engineering and Mining Journal), 
vol. iii, edited by Ricnarp P. RorHwett. 748 pp. 8vo. New 
York and London, 1895 (The Scientific Publishing Company).— 
This large volume is the third of the series and brings the sum- 
mary of the state of mineral industries in this country and abroad 
down to the close of 1894. It has developed out of the series 
of annual statistical numbers of the Hngineering and Mining 
Journal and gives evidence of the energy and enterprise of its 
editors. The editor-in-chief, R. P. Rothwell, has had the assist- 
ance of a large number of collaborators, sketches of about fifty 
of whom are given in the introduction. The result of their com- 
bined labors is this comprehensive volume, remarkable for its 
breadth of treatment as for the fullness of detail. Thus, in the 
case of each metal and other substances, not only is the amount 
mined given, but also the methods of mining and general metal- 
lurgical processes; also the methods of manufacture in the 
case of such products as alkalis, alum, sulphuric acid; both depart- 
ments have numerous illustrations; finally a statement is given 
of. the course of the market, as for copper, silver, etc. A vast 
amount of material of interest to different classes of people is thus 
brought together. The discussions are not limited to the pro- 
ducts of the United States, but embrace also the world at large; 
for example, we note that a chapter of some length gives an 
account of the occurrence of phosphates in Tunis and Algeria by 
M. D. Levat. 
12. Field Columbian Museum :—Handbook and Catalogue of 
the Meteorite Collection, by Otiver C. Farrineron, Ph.D., Cur- 
