weeks.] PALEONTOLOGY, PETROLOGY, AND MINERALOGY, 1896 31 
154 Cushing (Henry P.). Notes on the area! geology of Glacier Bay, 
Alaska. 
N. Y. Acad. Sci., Trans., vol. xv, pp. 24-34, pi. i, 1896. 
Describes the character and distribution of the limestone and igneous 
rocks, compares them with other Alasknn sections, and gives petro- 
graphic notes on the quartz diorites and schists. 
155 On the existence of pre-Cainbrian and post-Ordovicran trap 
dikes in the Adirondacks. 
N. Y. Acad. Sci., Trans., vol. xv, pp. 248-252. 1896. 
Discusses the rock classification and describes the character and dis- 
tribution, of the dikes. 
156 Dale (T. Nelson). Structural details in the Green Mountain region 
and in eastern New York. 
IT. S. Geol. Surv., 16th Ann. Rept., Pt. I, pp. 549-570, figs. 70-100, 1896. 
Describes the structural features of the region and gives a biblio- 
graphic list of the author's descriptions of related phenomena in publi- 
cations of the U. S. Geological Survey. 
157 Dall (William H.). Keport on coal and lignite of Alaska. 
U. S. Geol. Surv., 17th Ann. Rept., Pt. I, pp. 771-875, pis. xlviii-lviii, 
figs. 23-25, 1896. 
Describes the local occurrences of coal, the general Tertiary geology 
of Alaska, and includes notes on the occurrences of Silurian, Devonian; 
Carboniferous, and Mesozoic rocks. 
158 Diagnoses of new Tertiary fossils from the southern United 
States. 
U. S. Nat. Mus., Proc, vol. xviii. pp. 21-46, 1896. 
Describes a large number of new species. 
159 Darton (Nelson Horatio). Preliminary report on artesian waters 
of a portion of the Dakotas. 
U. S. Geol. Surv., 17th Ann. Rept., Pt. II, 89, pp. pis. lxix-cvii, figs. 
50-65, 1896. 
Describes the extent, occurrence, composition, and origin of artesian 
waters of the several counties of the region. 
160 Catalogue and index of contributions to North American 
geology, 1732-1891. 
IT. S. Geol. Surv., Bull. No. 127, 1045 pp., 1896. 
Contains an author's list of titles of papers arranged chronologically 
under each author and a subject index. 
161 Artesian well prospects in the Atlantic Coastal Plain region. 
U. S. Geol. Surv., Bull. No. 138, 228 pp., 19 pis., 1896. 
Gives the results of investigations of artesian well prospects in por- 
tions of the Middle and South Atlantic States, including records of well 
borings, and notes on the general geology of the region and on the Cre- 
taceous and Tertiary deposits. 
