Atithors' Catalogue. 389 
by Russell L. Morris, under the direction of the state geologist. Its 
scale is ten miles to the inch. It shows nearly half of the state a.s 
occupied by coal-bearing strata; while in its northwestern part, within 
fifty to seventy-five miles southeast, south, and southwest of Wheel- 
ing, oil pools and natural gas wells abound. w. u. 
The characters of crystats: an ijitroduction to Physical Crystal- 
lography. Alfred J. Moses. New York, Van Nostrand Company, 
pp. 211, iSqq, net $2.00. 
This little work, which is uniform in style with several that have 
been issued recently by the science members of Columbia University 
faculty, covers the field of practical mineralogical science, so far as per- 
tains to the necessary apparatus and its use. Thus, most of the topics 
are treated concisely and without much mathematical investigation. In 
most cases results and processes are announced, and are assumed to 
be acceptable to the ordinary student, without the full detail of demon- 
stration. The work is necessarily a compilation of methods and facts 
familiar to mineralogists, but it has the rare merit of being up to date, 
embracing several recent newly devised pieces of apparatus. It also 
has its own style and order of arrangement, and several new figures 
of illustration. It will prove to be, without question, a very useful 
book to all who have to do with crystals. It is an important addition 
to the literature of American mineralogy. N. H. w. 
MONTHLY AUTHORS' CATALOGUE 
OF American Geological Literature, 
Arranged Alphabetically.* 
Bailey, L. W. 
Triassic (?) rocks of Digby basin. (Trans. Nova Scotian Inst, of 
Sci., vol. 9, pt. 4, pp. 356-360, Dec. 31, 1898.) 
Bascom, F. 
On some dikes in the vicinity of Johns bay, Maine. (Am. Geol., 
vol. 23, pp. 275-280, pis. 8-1 1, May, 1899.) 
Bell, Robert. 
Rising of land around Hudson bay. (Ann. Rept. Smithsonian. Inst, 
for 1897, pp. 359-367, 1898.) 
Blue, Archibald. 
Corundum in Ontario. (Proc. Canadian Inst., vol. 2. pt. i, pp. 
15-22, Feb. 1899.) 
*Tliis list includes titles of articles received up to the 20th of the precediuK 
month, including general geology, physiography, paleontology, petrology and 
mineralogy. 
