VIII PUBLICATIONS ON ALASKA. 
Copper and upper Chistochina rivers: scale, 1:250000. Contained in "Geology of 
the central Copper River region, Alaska." Prof. Paper No. 41. T. G. Gerdine. 
Copper, Nabesna, and Chisana rivers, headwaters of; scale, 1 : 250000. Contained 
in "Geology of the central Copper River region, Alaska." Prof. Paper No. 41. 
I). C. Witherspoon. 
Copper River region; scale, 1:376000. Contained in "A reconnaissance of a part 
of Prince William Sound and the Copper River district, Alaska, in 1898." 
Twentieth Ann. Rept., pt. 7, 1900, pp. 341-428. P. G. Lowe, Emit Mahlo, and 
F. C. Schrader. (Out of stock. ) 
Fairbanks and Birch Creek districts, reconnaissance maps of; scale, 1:250000. Con- 
tained in "The gold placers of the Fortymile, Birch Creek, and Fairbanks 
regions." Bull. No. 251, 1905. T. G. Gerdine. 
Fort Yukon to Kotzebue Sound, reconnaissance map of ; scale, 1:625000. Contained 
in "Reconnaissance from Fort Hamlin to Kotzebue Sound, Alaska, by way of 
Dall, Ka 
Reaburn. 
Koyukuk River to mouth of Colville River, including John River; scale, 1:625000. 
Contained in " A reconnaissance in northern Alaska across the Rocky Mountains, 
along Koyukuk, John, Anaktuvuk, and Colville rivers, and the Arctic coast to 
Cape Lisburne, in L901." Prof. Paper No. 20. YV. J. Peters. 
Koyukuk and Chandlar rivers, portions of; scale, 1:625000. Contained in "Prelim- 
inary report of a reconnaissance along the Chandlar and Kovukuk rivers, 
Alaska, in 1899." Twenty-nrsi Ann. Rept., pt. 2, L900. T. G. Gerdine. 
Lynn canal, routes from, via headwaters of White and Tanana rivers to Eagle City; 
scale, 1:025000. Contained in "A reconnaissance from Pyramid Harbor to 
Eagle City, Alaska." Twenty-nrsi Ann. Rept., pt. 2, L900, pp. 331-391. W. .!. 
Peters. 
Mount Mckinley region; scale. 1:625000. Contained in "The geography and geol- 
ogy of Alaska, a summary of existing knowledge, etc." Prof. Paper No. 45. 
I>. L. Reaburn. 
Norton Bayregion; scale, 1:025000. Contained in a special publication of the United 
States < reological Survey, cut it lei 1 " Reconnaissances in the Cape Nome and Nor- 
ton Bay regions, Alaska, in 1000." Washington. Government Printing Office, 
1901. W.J. Peters. 
Porcupine placer region; scale, 1 inch=rU miles. Contained in "The Porcupine 
placer district. Alaska." Bull. No. 230. C. W. Wright. 
Prince William Sound, sketch map of: scale 1:376000. Contained in a special pub- 
lication of the United States Geological Survey, entitled "The geology and min- 
eral resources of a portion of the Copper River district, Alaska." Washington. 
Government Printing Office, 1901. Eniil Mahlo and F. C. Schrader. 
Seward Peninsula, northeastern portion of. topographic reconnaissance of; scale, 
1:250000. Contained in "The Eairhaven gold placers, Seward Peninsula, 
Alaska." Bull. No. 247. 1005. 1 ). ( '. Witherspoon. 
Seward Peninsula, northwestern pari of; scale, 1:250000. Contained in "A recon- 
naissance of the northwestern portion of Seward Peninsula. Alaska." Prof. 
Paper No. 2, 1002. T. (i. Gerdine. 
Sushitna River and adjacent territory; scale, 1:625000. Contained in "A recon- 
naissance in the Sushitna basin and adjacent territory, Alaska, in 1898." 
Twentieth Ann. Rept., pt. 7, 1000, pp. 1-29. Robert Muldrow. 
Tanana and White rivers, portions of; scale, 1:625000. Contained in "A recon- 
naissance in the Tanana and White River basins, Alaska, in 1898." Twentieth 
Ann. Rept., pt. 7, 1000, pp. 425-404. W. J. Peters. 
York region; scale, 1:250000. Contained in "The tin deposits of the Yorkregion, 
Alaska." Bull. No. 220. T. G. Gerdine. 
York and Kugruk regions, sketch maps of. Contained in a special publication 
of the United States Geological Survey, entitled " Reconnaissances in Cape Nome 
and Norton Bay regions, Alaska, in 1900." Washington. Government Printing 
Office, 1001. A. II. Brooks. 
Yukon-Tanana region, reconnaissance map of ; scale, 1:625000. Contained in "The 
gold placers of the Fortymile, Birch Creek, and Fairbanks regions, Alaska." Bull. 
No. 251. T. G. Gerdine. 
Topographic Macs of Alaska in Preparation. 
. < rerdine. 
Hamilton. 
Fairbanks placer district; scale, 1:250000. 1). C. Witherspoon. 
Solomon S j >ecial, Seward Peninsula, special map of; scale, 1:62500. T. G. Gerdine. 
Casadepaga Special, Seward Peninsula; scale, 1:62500. T. G 
Controller Pay region, special map of; scale, 1:62500. E. G, 
o 
