BIBLIOG&APHY OF NORTH AMERICAN GEOLOGY, L90d-1907. 105 
Jeffrey, Edward C, and Chrysler, M. A. 
1291. The lignites of Brandon [Vermont].— Vermont Gteol. Surrey, Fifth 
Kept. State Geol., pp. 195-201, 3 pis., 1906. 
Describes the method of examination employed and the characters of woody material 
found in the lignite. 
1292. On Cretaceous Pityoxyla.— Bot. Gazette, vol. 42. no. 1, pp. 1 -15, 2 pis., 
July, 1906. 
Describes the occurrence, state of preservation, and in detail the structure of the 
wood of Pityoxyla from Staten Island, New York, and from Massachusetts, characterizes 
two species, and discusses the relations of living and fossil pines. 
Jenney, Walter P. 
1293. Structural features of the Ontario mineral belt, Park City, Utah. 
Min. and Sci. Press, vol. 92, pp. 6-7, 1 fig., January 6, 1906. 
Describes the stratigraphy and the relations of the ore-bearing veins. 
1294. The fissure system of the Ontario mineral bell [Utah]. — Min. and Sci. 
Press, vol. 92, pp. 24-25, 3 figs., January 13, 1906. 
1295. Block-faulting and iis relation to ore deposition. Min. and Sci. Press, 
vol. 92, pp. 54-55, 2 figs., January 27, 1906. 
Discusses tbe conditions under which block-faulting took place, its characteristics, and 
connection with ore deposition. 
1296. The ore deposits of the Ontario mineral belt [Utah].— Min. and Sci. 
Press, vol. 92, pp. 108-109, 2 figs., February 17, 1906. 
Discusses the occurrence and origin of ore deposits. 
Jennings, E. P. 
1297. The Lost Packer copper gold lode [Idaho]. — Canadian Min. Inst., 
Jour., vol. 9, pp. 54-57, 1906 ; Min. and Sci. Press, vol. 92, pp. 435-436, June 30, 
1906. 
1298. Genesis of the copper deposits of Yerington, Nev. — Eng. and Min. 
Jour., vol. 83, pp. 1143-1144, June 15, 1907; Canadian Min. Jour., vol. 28, no. 14. 
(new ser., vol. 1, no. 12), pp. 365-366, September 1, 1907. 
Johnson, B. L. 
1299. Pleistocene terracing in the North Carolina coastal plain. — Science, 
new ser., vol. 26, pp. 640-642, November 8, 11)07. 
Johnson, Douglas Wilson. 
1300. The scope of applied geology, and its place in the technical school. — 
Econ Geol., vol. 1, no. 3, pp. 243-256, December-January, 1905-1906; Tech. 
Quart., vol. 19, no. 1, pp. 25-36, 1906. 
1301. The New England intercollegiate geological excursion, 1905. Geology 
of the Nantasket area. — Science, new ser., vol. 23, pp. 155-156, January 26, L906. 
1302. Report on the geological excursion through New Mexico. Arizona, and 
Utah, summer of 1906.— Tech. Quart., vol. 19. no. 4, pp. 408-415, 1906. 
Includes notes on physiographic features of the region examined. 
1303. Drainage modifications in the Tallulah district. — Boston Soc. Nat. 
Hist., Proc, vol. 23, no. 5, pp. 211-24S, 2 pis., 9 figs., 1907. 
Reviews previous work, describes the general geology and physiography of the region, 
the rock types and structural relations in the Tallulah district, and its topographic 
features, considers the principles governing river capture, and applies these to explain 
drainage changes in the Tallulah district. South Carolina-Georgia. 
1304. Volcanic necks of the .Mount Taylor region. New Mexico.— Geol. Soc. 
America, Bull., vol. IS, pp. 303-324. (I pis., 10 figB., 1!><»7. Abstract : Science, new 
ser., vol. 25. p. 709, May 17. L907. 
