CONTRIBUTORS. 58 



Swartz, C. K. 



Pawpa-w-Hancock folio, West Virginia-Maryland-Peimsylvania (with G. W. Stose). 

 Taff, J. A. 



Data on Sheridan coal field, Wyoming, on Book Cliffs and Wasatch Plateau coal fields, Utah, and on San Juan 



coal region. New Mexico, used in compiling map of the coal-bearing Cretaceous and Tertiary. 

 Geologic map of the McAlester-Lehigh coal field, Oklahoma: Nineteenth Ann. Rept. U. S. Geol. Survey, pt. 3, 



1899, pp. 423-602. 

 Geologic maps of Arbuckle and Wichita mountains, and coal fields of Oklahoma: Nineteenth Ann. Rept. IT. S. 



Geol. Survey, pt. 3, 1899, pp. 423-583; Prof. Paper U. S. Geol. Survey No. 31, 1904. 

 Geologic map of part of the eastern Choctaw coal field, Oklahoma: Twenty-first Ann. Rept. IT. S. Geol. Survey 



pt. 2, 1900, pp. 257-311 (with G. I. Adams). 

 Buckhannon and Piedmont folios, Appalachian region; Coalgate, Atoka, Tishomingo, Tahlequah, and Muscogee 



folios, and manuscript maps of McAlester, Winding Stair, Antlers, Tuskahoma, Canadian, Sansbois, and Salli- 



saw quadrangles, Oklahoma. 

 Tarr, B. S. 



Watkins Glen-Catatonk folio. New York (with H. S. Williams and E. M. Kindle). 



Data on Yakutat Bay and Alsek River region (making use of earlier work of I. C. Russell), used in compiling 



manuscript map of Alaska. 

 Thoroddaen, Th. ' 



Geologic map of Iceland, London, 1901. 

 Tippenhauer, L. G. 



Notes on Haiti used in compiling map of West Indies: Petermanns Mitt., Bd. 45, 1899, pp. 25-29, 153-155, 201-204; 



Bd. 47, 1901, pp. 121-127, 169-178, 193-199. 

 Todd, J. E. 



Olivet, Parker, Mitchell, Alexandria, Huron, De Smet, Elk Point, and Aberdeen-Redfield folios, South Dakota. 

 Torrance, J. I*. 



Data on Ottawa County, Quebec: Rept. Prog. Geol. Survey Canada for 1882-1884, Rept. J. 

 Torre, Carlos de la. 



Notes on the paleontology of Cuba: Ariales Acad, ciencias m^dicaa, fisicas y naturales de la Habana, Bevista 



cientlfica, vol. 47, July, 1910, pp. 1-33, with plates. 

 Tower, G. W. 



Butte folio, Montana, and Tintic folio, Utah. 

 Turner, H. W. 



Geologic map of Tertiary deposits in Silver Peak region, Nevada: Twenty-first Ann. Rept. U. S. Geol. Survey, 



pt. 2, 1901, pp. 191-226. 

 Geologic map of older formations of Sierra Nevada, California: Seventeenth Ann. Rept. U. S. Geol Survey, pt. 1, 



1896, pp. 521-761. 

 Placerville, Jackson, Marysville, SmartsviUe, Downieville, Sonora, Bidwell Bar, and Big Trees foUos, Sierra 



Nevada, California. 

 Manuscript maps of Silver Peak quadrangle, Nevada,, and Yosemite quadrangle, California. 

 Tyrrell, J. B. 



Geologic map of central Alberta: Ann. Rept. Geol. Survey Canada for 1886, vol. 2, Rept. E. 



Data on northwestern Manitoba: Ann. Rept. Geol. Survey Canada for 1887-88, vol. 3, Rept. E. 



Geologic map of northwestern Manitoba: Ann. Rept. Geol. Survey Canada for 1890-91, vol. 5, Rept. E. 



Data on and geologic map of country between Athabasca Lake and Churchill River: Ann. Rept. Geol. Survey 



Canada for 1895, vol. 8, Rept. D (with D. B. Dowling). 

 Data on Doobaunt, Kazan, and Ferguson rivers and northwest coast of Hudson Bay: Ann. Rept. Geol. Survey 



Canada for 1896, vol. 9, Rept. F. 

 Data on northern Manitoba: Summ. Rept. Geol. Survey Canada for 1897, pp. 34-38. 



Data on Yukon and adjacent parts of British Columbia: Summ. Rept. Geol. Survey Canada for 1898, pp. 36-46. 

 Geologic map of Lake Winnipeg and vicinity: Ann. Rept. Geol. Survey Canada for 1898, vol. 1], Rept. G (with 



D. B. Dowling). 

 Geologic map of northeastern Saskatchewan and adjacent parts of Keewatin: Ann. Rept. Geol. Survey Canada 



for 1900, vol. 13, Rept. F. 

 TJdden, J. A. 



Data on the Cretaceous of Texas, used in compiling the map of the Atlantic and Gulf Coastal Plain. 



Geologic map of portion of southwestern Texas, from Lone Mountains to Chisos district: Repts. Univ. Texas Min. 



Survey, 1904 (with B. F. Hill). 

 TJlricli, E. O. 



Notes on distribution of Paleozoic formations, particularly Cambrian, Ordovician, and Silurian, in eastern United 



States. 

 Columbia folio, Tennespee, and Fayetteville folio, Missouri-Arkansas. 



