weeks! PALEONTOLOGY, PETROLOGY, AND MINERALOGY, 1896. 27 
117 Chester (Albert II.). On caswellite, aii altered biotite from 
Franklin Furnace, N. J. 
N. J. Geol. Surv., Aim. Rept. for 1895, pp. xxxvii-xl, 1896. 
Describes the occurrence and microscopic and chemical characters of 
the mineral. 
118 Clark (William Bullock). The Eocene deposits of the Middle 
Atlantic slope in Delaware, Maryland, and Virginia. 
U. S. Geol. Surv., Bull. No. 141, 167 pp., 40 pis., 1896. 
Describes the general relations, distribution, character and strati- 
graphic and paleontologic characteristics of the Eocene strata of the 
region. Presents a bibliography, discusses the criteria to be employed 
in the correlation of the deposits, and describes a large number of 
species. 
119 The Potomac River section of the Middle Atlantic Coast 
Eocene. 
Am. Jour. Sci., 4th ser., vol. i, pp. 365-374, 1896. 
Gives a columnar section and describes the lithologic character and 
fauna of the several beds of the Potomac River section, including a list 
of the fossils characteristic of the two faunal stages. Discusses the 
geologic and paleontologic criteria for the correlation of the deposits. 
120 Descriptions of the geological excursions made during the 
spring of 1895. 
Johns Hopkins Univ. Circ, vol. xv, pp. 1-3, 1895. 
Describes the Cretaceous and Tertiary formations along the Potomac 
River, the Cambrian and Silurian limestones of the Great Valley of Vir- 
ginia, and the Upper Silurian sandstone of Massanutten Mountain. 
121 Two new brachiopods from the Cretaceous of New Jersey 
Johns Hopkins Univ., Circ, vol. xv, p. 3 (-£ p.), 1895. 
Describes two new species. 
122 Contributions to the Eocene fauna of the Middle Atlantic 
slope. 
Johns Hopkins Univ., Circ, vol. xv, pp. 3-6, 1895. 
Discusses the geologic and paleontologic criteria for the correlation of 
the Eocene deposits and describes many species, including a number 
of new ones. 
123 Additional observations upon the Miocene (Chesapeake) 
deposits of New Jersey. 
Johns Hopkins Univ., Circ, vol. xv, pp. 6-8, 1895. 
Describes the occurrence, relations, and lithologic character of the 
beds and discusses the correlation of the strata, and the deformation of 
the region. 
124 [Review of "Mollusca and Crustacea of the Miocene formation 
of New Jersey," by R. P. Whitfield.] 
Science, new ser., vol. iii, pp. 291-292, 189(5. 
125 Clarke (John M.). The structure of certain Paleozoic barnacles. 
Am. Geol., vol. xvii, pp. 137-143, pi. vii, 1896. 
Discusses some of the characters of tbe species of Lepidocoleus and 
describes two new species. 
