Review of Recent Geological Literature. 325 
as to the quality of its typography and illustrations, and the sumptuously 
wide margins of its pages, which make it an exceptionally ponderous vol- 
ume. From the standpoint of a librarian, who must adjust his shelves 
according to the size of his books, a smaller quarto or octavo form would 
be more satisfactory. 
The administrative report, with synopses of the work of assistants in 
the field and office, relating to the geological map of the state, occupies 
20 pages. In this part the reader finds the outlines of the results that 
are more fully stated by these assistants in the fourteen papers which con- 
stitute the remainder of the volume, as follows : The Stratigraphic and 
Faunal Relations of the Oneonta sandstones and shales, the Ithaca and 
Portage Groups in central New York, by John M. Clarke (pp. 27-81, with 
7 plates of scenery, 2 geological maps, and g figures in the text); The 
Classification and Distribution of the Hamilton and Chemung series of 
central and eastern New York, Part I, by Charles S. Prosser (pp. 83-222, 
with 13 plates of scenery, a large geological map, and many sections in 
the text) ; The Stratigraphic Position of the Portage sandstones in the 
Naples valley and the Jidjoining region, by D. Dana Luther (pp. 223- 
236, with two plates, a map, and a section); The Economic Geology of 
Onondaga county. New York, by D. Dana Luther (pp. 237-303, with 21 
plates, 2 maps, and 12 figures); The Structural and Economic Geology of 
Erie county, by Irving P. Bishop (pp. 305-392, with 16 jjlates, and 6 
maps); Geology of Orange county, by Heinrich Ries (pp. 393-475, with 
44 plates, including many maps and sections); Report on the Crystalline 
Rocks of St. Lawrence county, by Charles H. Smith, Jr. (pp. 477-497); 
Report on the Geology of Clinton county, by Henry P. Cushing (pp. 499- 
573, with 5 plates, a county map, and geological maps of the separate 
townships); Preliminary Report on the Geology of Essex county, by 
James F. Kemp (pp. 575-614, with 12 plates, including a county map and 
large geological maps of several townships); Sections and Thickness of 
the Lower Silurian formations on West Canada creek and in the Mohawk 
valley, by Charles S. Prosser and Edgar R. Cumings (pp. 615-659, with 
12 plates of scenery, and 3 figures of sections in the text); Report on the 
Talc Industry of St. Lawrence county, by Charles H. Smyth, Jr. (pp. 
661-671); Physical tests of the Devonian shales of New York state to de- 
termine their value for the Manufacture of Clay Products, by Heinrich 
Ries (pp. 673-698); The Discovery of a Sessile Conularia, by R. Ruede- 
mann (pp. 699-728, with 4 plates, being in large part the same as his ar- 
ticles, with plates, in the American Geologist for March and April, 1896); 
and Notes on some Crustaceans from the Chemung group of New York, 
by John M, Clarke (pp. 729-738, with four figures in the text). A large 
geological map of Albany county, on the scale of a mile to an inch, by 
N. H. Darton, is inserted at the end of this volume. 
Professor Hall's work for this state survey during more than sixty 
years, with that of his associates and assistants, long ago made New 
York the leader and exemjjlar of all other surveys on our continent in 
relation to the stratigraphy, paleontology, and correlation of the Paleo- 
zoic formations; and this work was continued with unabated industry and 
