NORTH AMERICAN GEOLOGY. 



255 



Comstock, Theodore B. — Continued. 



A preliminary examination of t.lio 



geology of western central Arkansas. 

 Arkansas Geol. Surv., lieport for 1888, vol. 1, 

 pp. 1-320, 2 maps, 1888. 

 Hot Spring formations in Red Moun- 

 tain district, Colo. : A reply to the 

 criticisms of Mr. Emmons. 



Am. Inst. Mining Eng., Trans., vol. 17, pp. 

 261-264, 1880. 



A preliminary report on the geology 



of the central mineral region of Texas. 

 Texas Geol. Surv., 1st Annual Eeport, pp. 

 237-391, plate 2, 1890. 



Abstract, Am. Geol., vol.6, p. 123 (4 lines), 

 1890. 

 Report on the geography and min- 

 eral resources of the central mineral 

 region of Texas, chiefly south of tire 

 San Saha River, north of the Peder- 

 nales River, west of Burnet, and east of 

 Menardsville and Junction City. 



Texas Geol. Surv., 2d Annual Eeport, pp. 

 553-664, 3 maps, 1891. 



Tin in central Texas. 



Eng. and Mining Jour., vol. 51, pp. 117-118, 

 4P, 1891. 

 [Condon, Thomas.] Preliminary report 

 of the State geologist [of Oregon], 22 

 pages, Salem, 1874. 



Abstract, Am. Jour. Sci., 3d aeries., vol. 9, 

 p. 401 (i p.), 1875. 



Washington Territory [and Oregon] 



[geological formations]. 



Macfarlane'a Am. Geol. E. E. Guide, pp. 172- 

 173, 1879. 



On some points connected with the 



igneous eruptions along the Cascade 

 Mountains of Oregon . 



Am. Jour. Sci., 3d series, vol. 18, pp. 406-408, 

 1879. 



[ ] Oregon. 



Macfarlane's Geol. Ewy. Guide, 2d edition, 

 pp. 316-317, 1890. 

 Conkling, A. R. Report on the geology 

 of the mountain ranges from La Veta 

 Pass to the head of the Pecos. 



Geographical surveys west of the 100th meri- 

 dian, by "Wheeler, annual report. Annual 

 Eeport of the Chief of Engineers for 1876, Ap- 

 pendix JJ, pp. 199-202, Washington, 1876. 



Geological report on the portions of 



western Nevada and eastern California 

 between the parallels of 39° 30' and 

 38° 30'. 



Geograpical surveys ■\Yest of the 100th meri- 

 dian by Wheeler, annual report. U. S. Army, 

 Chief of Engineers, Annual Eeport for 1877, 

 pp, 1285-1295, Appendix N2J", Washington, 

 1877. 



Conkling, A. R. — Continued. 



Eeport on the foothills facing the 



plains from latitude 35° 30' to 38°, ap- 

 proximately. 



Geographical suiveys west of the 100th 

 meridian, by Wheeler, annual report. 17. S. 

 Army, Chief of lingineers, Annual Eeport for 

 1877, pp. 1298-1303, Appendix H"N", Washing- 

 ton, 1877. 



Eeport on the lithology of portions 



of southern Colorado and northern 



New Mexico. 



Geographical surveys west of the 100th 

 meridian,' by Wheeler, annual report. U. S. 

 Army, Chief of Engineers, Annual Eeport for 



1877, pp. 1295-1298, Appendix NN, Washing- 

 ton, 1877. 



Report on the lithology and miner- 

 alogy of portions of Nevada and Cali- 

 fornia. 



Geographical surveys west of the 100th 

 meridian, by Wheeler, annual report. U. S. 

 Army, Chief of Engineers, Annual Eeportfor 



1878, pp. 184^185, Appendix NN", Washington, 

 1878. 



Geological report on portions of 



western Nevada and eastern California, 

 including part of the Sierra Nevada 

 range. 



Geographical surveys west of the 100th 

 meridian, by Wheeler, annual report. IJ. S. 

 Army, Chief of Engineers, Annual Eeport for 

 1878, pp. 167-183, Appendix NK", Washington, 

 1878. 



Connecticut. 

 1807. Observations on geology of United 

 States and geologic map, Ma- 

 olure. 

 1810. Mineralogy of town of New Ha- 

 ven, Silliman. 

 1814. Observations in vicinity of New 



Haven, Silliman. 

 1818. Geology of the United States, 

 Maclure. 

 Index to the geology of the North- 

 ern States, Eaton. 

 Localities of minerals and re- 

 mains, Silliman. 

 Minerals of Litchfield County, 

 Brace. 

 1820. Geology and mineralogy of Litch- 

 field County, Brace. 

 Tour in New Haven and Litch- 

 field, Silliman. 

 Minerals, principally in Haddam, 



Webster, J. W. 

 Tour between Hartford and Que- 

 bec, Silliman, 



