22 BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1906-1907. 
Earrell, Joseph — Continued. 
149. Geology of the Marysville mining district, Montana: a study of igneous 
intrusion and contact metamorphism. — U. S. Geol. Survey, Prof. Paper no. 57, 
178 pp., 16 pis., 9 figs., 1907. 
Describes Algonkian and Tertiary deposits and igneous rocks and the geologic structure 
of the region, and discusses the contact and intrusive phenomena. 
150. Origin and significance of the Mauch Chunk shale. — Geol. Soc America, 
Bull., vol. 18, pp. 449-476, 4 pis., 1 fig., December, 1907. Abstract: Science, new 
ser., vol. 25, p. 766, May 17, 1907. 
Describes the distribution and character of the Mauch Chunk formation and dis- 
cusses the mode of formation of the shale. 
151. Relations between climate and river deposits. — Abstract: Science, new 
ser., vol. 25, p. 766, May 17, 1907. 
Barringer, Daniel Moreau. 
152. Coon Mountain and its crater [Arizona]. — Philadelphia Acad. Nat 
Sci., Proc, vol. 57, pt. 3, pp. 861^886, 1906. 
Discusses the origin of this " crater." 
Barring-er, Daniel Moreau, and Tilghman, B. C. 
153. The geology of Coon Butte, Arizona. — Abstract: Science, new ser., vol. 
24, pp. 370-371, September 21, 1906; Am. Assoc. Adv. Sci., Proc, vol. 56-57, p. 
271, 1907. 
Barus, Carl. 
154. Yulcanism. — Science, new ser., vol. 24, pp. 400-403, September 28, 1906. 
Discusses the bearing of certain physical facts upon theories of vulcanism. 
155. Note on volcanic activity. — Am. Jour. Sci., 4th ser., vol. 24, pp. 483-484, 
December, 1907. 
Bassler, Ray S. 
156. A study of the James types of Ordovician and Silurian Bryozoa. — 
U. S. Nat. Mus., Proc, vol. 30, pp. 1-66, 7 pis., 1906. 
Includes a short account of the classification of Ordovician strata in the vicinity of 
Cincinnati, Ohio. 
157. The bryozoan fauna of the Rochester shale. — U. S. Geol. Survey, Bull, 
no. 292, 136 pp., 31 pis., 1906. 
Discusses the distribution and correlation of Niagaran bryozoan faunas and gives 
systematic descriptions of the Bryozoa of the Rochester shales of New York and On- 
tario. 
158. Cement and cement materials [of Virginia]. — In Watson, T. L., Min- 
eral Resources of Virginia, pp. 86-167, 10 pis., 14 figs., 1907. 
New American Paleozoic Ostracoda. Notes and descriptions of upper Car- 
boniferous genera and species. — See Pinch and Bassler, no. 2412. 
Bastin, Edson S. 
159. Some unusual rocks from Maine. — Jour. Geology, vol. 14, no. 3, pp. 
173-187, 2 figs., 1906. 
Describes the occurrence and petrographic characters of prowersose, albite-pyroxene 
syenite, cortlandite, and porphyritic granite. 
160. The lime industry of Knox County, Me. — U. S. Geol. Survey, Bull. no. 
285, pp. 393-100, 3 figs., 1906. 
Describes the distribution, utilization, general character, and mode of occurrence of 
the limestones of Knox County, Me. 
161. Clays of the Penobscot Bay region, Maine. — U. S. Geol. Survey, Bull, 
no. 285, pp. 428-431, 1906. 
Describes the distribution, age, origin, utilization, and composition. 
