IV ADVERTISEMENT. 
1899. 
Walcott, C. D., Director. Account of operations in Alaska in 1899. In Twentieth 
Ann. Kept. U. S. Geol. Survey, pt. 1, 1899, pp. 12, 52-53, 97, 126-134. 
(Out of stock.) 
Maps and descriptions of routes of exploration in Alaska in 1898, with general infor- 
mation concerning the Territory. (Ten maps in accompanying envelope. ) 
Prepared in accordance with Public Resolution No. 25 of the Fifty-fifth 
Congress, third session, approved March 1, 1899. Printed in the engrav- 
ing and printing division of the United States Geological Survey, Wash- 
ington, D. C, 1899. 138 pp., 10 maps in accompanying envelope. A 
special publication. Contributors: G. H. Eldridge, Robert Muldrow, 
J. E. Spurr, W. S. Post, W. C. Mendenhall, F. C. Schrader, W. J. Peters, 
A. H. Brooks, and E. C. Barnard. (Out of stock.) 
1900. 
Baker, Marcus. Alaskan geographic names. In Twenty-first Ann. Rept., pt. 2, 
1900, pp. 487-509. 
Brooks, A. H. A reconnaissance from Pyramid Harbor to Eagle City, Alaska, 
including a description of the copper deposits of the upper White and 
Tanana rivers. In Twenty-first Ann. Rept., pt. 2, 1900, pp. 331-391. 
A reconnaissance in the Tanana and White River basins, Alaska, in 1898. 
In Twentieth Ann. Rept., pt. 7, 1900, pp. 425-494. (Out of stock.) 
Eldridge, G. H. A reconnaissance in the Sushitna basin and adjacent territory, 
Alaska, in 1898. In Twentieth Ann. Rept, pt. 7, 1900, pp. 1-29. (Out 
of stock. ) 
Gannett, Henry. Altitudes in Alaska. Bull. No. 169, 1900, 13 pp. 
Mendenhall, W. C. A reconnaissance from Resurrection Bay to the Tanana River, 
Alaska, in 1898. In Twentieth Ann. Rept., pt. 7, 1900, pp. 265-340. 
(Out of stock.) 
Rohn, Oscar. A reconnaissance of the Chitina River and the Skolai Mountains, 
Alaska. In Twenty-first Ann. Rept., pt. 2, 1900, pp. 303-340. (Out of 
stock. ) 
Schrader, F. C. A reconnaissance of a part of Prince William Sound and the Cop- 
per River district, Alaska, in 1898. In Twentieth Ann. Rept., pt. 7, 1900, 
pp. 341-423. (Out of stock.) 
Preliminary report on a reconnaissance along the Chandlar and Koyukuk 
rivers, Alaska, in 1899. In Twentv-first Ann. Rept., pt. 2, 1900, pp. 441- 
486. 
and Brooks, A. H. Preliminary report on the Cape Nome gold region, 
Alaska, with maps and illustrations. Washington, Government Printing 
Office, 1900. 56 pp. 3 maps and 19 pis. A special publication. 
Spurr, J. E. A reconnaissance in southwestern Alaska in 1898. In Twentieth Ann. 
Rept,, pt, 7, 1900, pp. 31-264. 
Walcott, C. I)., Director. Account of operations in Alaska in 1900. In Twenty- 
first Ann. Rept., pt, 1, 1900, pp. 17-18, 86, 145-149. 
1901. 
Brooks, A. H. An. occurrence of stream tin in the York region, Alaska. In Min- 
eral Resources of the U. S. for 1900, 1901, pp. 267-271. Published also as 
a separate, Washington, Government Printing Office, 1901, cover and pp. 
1-5. (Out of stock.) 
The coal resources of Alaska. In Twentv-second Ann. Rept., pt. 3, 1901, 
pp. 515-571. 
, Richardson, G. B., and Collier, A. J. A reconnaissance of the Cape Nome 
and adjacent gold fields of Seward Peninsula, Alaska, in 1900. In a special 
publication entitled " Reconnaissances in the Cape Nome and Norton Bay 
regions, Alaska, in 1900," Washington, Government Printing Office, 1901, 
pp. 1-180. 
Mendenhall, W. C. A reconnaissance in the Norton Bay region, Alaska, in 1900. 
In a special publication entitled "Reconnaissances in the Cape Nome and 
Norton Bay regions, Alaska, in 1900," Washington, Government Printing 
Office, 1901, pp. 181-218. 
Schrader, F. C, and Spencer, A. C. The geology and mineral resources of a por- 
tion of the Copper River district, Alaska. A special publication, Wash- 
ington, Government Printing Office, 1901, pp. 1-94. 
Walcott, C. D., Director. Account of operations in Alaska in 1901. In Twenty- 
second Ann. Rept., pt. 1, 1901, pp. 35, 95-99, 144, 166-170. 
