268 Tlie Aiticricnn Geohxjist. April, 1895 
Gcol. Siir. of Ohio. vol. \ ii. \)\\. \vi. 7(10 (willi .■)() platrs. a ,ycolo<jric;il 
map of thr stiUi', iuid 10 maps sliowiii^- outcrop boumlarii's of priiifipal 
coal seams), coiilaiiis: (ii-olouit-al scale and <j('ol(),nical si rucliin- of Ohio, 
Edward Orion: The clays (if Ohio, tlicir oriifin, composition, and varie- 
ties. P^dward Orton. Jr.; 'i'iircoal fields of Oliio, Edward Orton: Contribu- 
tions to the paleontolo>;y of Ohio, R. P. Whitfield; Observations on the 
so-called "Waverly <>roiip of Ohio, C. E. llerrick: Fossils of the Clinton 
.liroiip in Ohio and Indiana. A. F. Foerste: The fossil fishes of Ohio, E. 
W. Claypole and A. \. Wri<;lit: New and little known Lamellibranciata 
from the Lower Silurian rocks of Ohio and adjacent stales. E. O. U I rich. 
Soutii Dakota (Jeol. S\ir.. I'.ull. Xo. 1. A preliminary report on tlie 
geology of Soutii Dakota, by .1. E. Todd, state geologist, vii and 172 
pp., 5 plates, and a geological map of the stale. ]8!).'>. 
Mi.ssouri Ceol. Sur. Tiiird biennial ri'porl of the stale geologist, C- 
R. Keyes. 00 pp.. ISy."). 
U. S. (ieol. Sur.. iJull. 120. The Devonian systems of eastern Penn- 
sylvania and New York, C. S. Prosser. 81 pp., 2 |)lates. 1894. 
Geol. and Nat. Hist. Sur. of Minn.. 2:{d (189-J) Ann. Rept., contains: 
The )rigin of tiie Archean greenstones. N.H. Winchell; Preliminary re- 
port on the Rainy Lake gold region, II. \. AVinchell and U. S. Grant; 
The topographical sur\ey of Minnesota. W. 1{. Hoag; Historical skctcl\ 
of the discovery of mineral deposits in tiie lake Superior region. H. V. 
Winchell: Late Glacial or Cliamplain subsidence and re-elevation of the 
St. Lawrence river basin. Warren Upluim: Noteson Minnesota minerals. 
C. P. Rerkey: Cliemical analyses: The ])rogress of mining, N. H. Win- 
chell; Compressive strength of some Minnesota bricks and building 
.stones: Notes uiion the bedded and banded structures of the gabbro and 
upon an area of Iroctolyle. A. H. Elftman. 
Geol. Sur. of .\labama. Report on the geolog> of the Coastal plain of 
Alabama. l)y E, A. Smith. L. C. Johnson and D. W. Langdon, Jr.: with 
contributions to its paleontology, by T. H. .\ldrich and K. M. C'uniiing- 
ham. Pp, i-.\xiv, 1 7r)<», pis. 1-29, 1894. 
Missouri Geol. Sur. vols. 1 and .i; Paleontology of Missouri, by C. R. 
Keyes. Pt. I. pp. 1 271. pis. 1-32: pt. II. pp. l-20(), i)ls. n:{-.30: 1894. 
Missouri Geol. Sur. vols, (i and 7: Lead and zinc dei)osits, by Artliur 
Winslow. assisted by .1. I) Robertson. In two .sections: jij). 1-21, l-7(>:5, 
1894. 
Cal. Stale Mining Rureau. 12th Ann. Rept. Slate .Mineralogist. J. J. 
<_'rawf(u-d: pp. 1-541, 1894. 
//. P)'(ii-ie(lln[iK i>f Srii'Nfip'r Societii's. 
.lour. Elislia Mitchell Sci. Soc, vol. xi. part 1 1894. contains: Tiie ex- 
haustion of the coal supply, F. P. V-'nabli-: Sulphur from pyrite in Na- 
ture's laboratory, Collier Cobb. 
Rull. Nat. Hist. Soc. New Rrunswick. No. 12. 1894. contains: Th.- 
crystalline rocks near St. John, N. 15., \\ . D. Matthew: Pt)st-glacial 
faults al Si. John, N. P... (J. F. Matthew: Outlets of the St. John river. 
G. F. Matthew: Some evideiuTS of a izlacial ejioch. C. R. Fischer: The 
mountain svstems of Anirrica. L. W. I!aile\ . 
