Geology and Mineralogy. 159. 
Faunas of North America; by C. D. Waucorr. 369 pp. 8vo, 
with 33 plates. Washington, 1886. Bulletin No. 30, U.S. Geol. 
Survey. A very large and elaborate contribution to Cambrian 
Paleontology, with numerous excellent illustrations on the 33 
plates. 
8. The Geological and Natural History Survey of Minnesota 
for 1885. .N. H. Wrycue x, State Geologist.—This volume con- 
tains reports on the Aphidide of the State by O. W. Céstlund, 
on Cheiocrinus and Calceocrinus and some new genera of Crin- 
oids by E. O. Ulrich; Report on the Museum; bibliography in 
the department of Foraminifera; new fossils by N. H. Winchell; 
on copper alloyed: with silver from the L. Superior region (less 
than one-tenth per cent in assays given), and on the Cambrian of 
Minnesota, by the same. 
9. Annuaire Geologique universel et Guide du Géologue 
autour de la Terre, etc., publié par le Dr. Agincourt avec le con- 
cours de nombreux Géologues, H. Chelot Secrétaire. Tome II, 1° 
partie, 362 pp.; 2°, Appendice, 27 pp.; 3°, Index bibl. 1885, 79 
pp. Paris, 1886.—This second edition of the Geological Annual 
by Dr. Agincourt is an important advance upon the volume of 
last year both as regards amount of matter and accuracy. It 
includes a long list of the Geologists of different countries, with 
their addresses; of the prominent museums; geological charts 
and other kindred matter. 
10. Notes on Minerals from North Carolina ; by G. vom Ratu. 
—In a recent copy of his “‘ Vortrige und Mittheilungen,” con- 
taining the communications made to the Scientific Society at Bonn 
between the dates January 11 and July 7, 1886, Professor vom 
Rath gives, together with other interesting matter, the results of 
his study of some North Carolina minerals. The specimens in 
hand were received from Mr. W. E. Hidden, having been found 
by the latter in his explorations in the neighborhood of Stony 
Peint, Alexander County. The following abstract includes the 
points of most interest. 
Breryt.—A highly modified crystal 12™™ in length by 10™™ in 
width, and of nearly ideal symmetry, was found to “be a combina- 
tion of the following forms : 
0 (0001), Z(1010), #-2 (1120), 1 (1011), 2 (2021), 2-2 (1121), 3-3 (2131), 4-$ (3141), 
2-2 (4263), 6-3 (4261), 2-2 (5494)? 3-3 (2132). 
The figure accompanying the description shows all these planes 
except the last two. The form 4-§ is spoken of as new to the 
species, which, however, is hardly tr ue, as it was noted by Hes- 
senberg in 1863 on an Elba crystal. The results of careful meas- 
urements agreed very closely with the angles given by Kokscha- 
row as seen in the following list; the double angles indicate the 
extreme values for the different edges measured. 
Vom Rath. Kokscharow. 
OR2=2—13 ae 2centon Loon 44 W352537. 55" 
2-2 ~ 2-2=138° 37’ to 138° 384’ 138° 387 23” 
OFM — Tb Oe AistonloOsse 150° 3% 24" 
ele —ll5 ile Aantonlo le, G44 Loeb 44 Ow 
