43 
D. VAN NOSTRAND. 
SILVER MINING REGIONS OF COLORADO, with somo 
account of the different Processes now being introduoed for 
working the Gold Ores of that Territory. By J. P. Whitney. 
12mo. Paper. 25 cents. 
COLORADO: SCHEDULE OF ORES contributed by sundry 
persons to tbe Paris Universal Exposition of 1867, with some 
Information about the Region and its Resources. By J. 1 . 
Whitney, Commissioner from the Territory. 8vo. Paper, with 
Maps. 25 cents. 
THE SILVER DISTRICTS OF NEVADA. With Map. 8vo. 
Paper. 35 cents. 
ARIZONA: ITS RESOURCES AND PROSPECTS. By Hon. 
R. C. McCokhtck, Secretary of the Territory. With Map. 8vo. 
Paper. 25 cents. 
MONTANA AS IT IS. Being a general description of its Re 
sources, both Mineral and Agricultural; including a complete 
description of the face of the country, its climate, etc. Illustrated 
with a Map of the Territory, showing the different Roads and 
the location of the different Mining Districts. To which is 
appended a complete Dictionary of The Snake Language, and 
also of the famous Chinnook Jargon, with numerous critical and 
explanatory Notes. By Granyille Stuart. 8vo. Paper. $2.00. 
RAILWAY GAUGES. A Review of the Theory of Narrow 
Gauges as applied to Main Trunk Lines of Railway. By Silas 
Sf.ymocii, Genl. Consulting Engineer. 8vo. Paper. 50 cents. 
REPORT made to the President and Executive Board of the 
Texas Pacific Railroad. By Gen. G. P. Büell, Chief Engineer. 
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