Report issued by the Bureau of Mines over studies conducted on the pilot plant in Laramie County, Wyoming. As stated in the introduction, "the purpose of this report is to record information derived from recent experimental work that had as its objective the development and demonstration of one method of producing sponge iron" (p. 2). This report includes tables, illustrations, and photographs.

Document outlining the trial of Second Lieutenant Charles F. Mayer on charges of lying to superior officers, including the final verdict and sentence.

A photograph postcard showing Union Pacific (UP) 802, 4-8-4, on passenger train No. 1-28, "San Francisco Overland Limited", near Cheyenne, WY, 20 cars, 50 mph.

A photograph postcard showing Union Pacific (UP) 806, 4-8-4, on mail train No. 6, "Fast Mail", east of Cheyenne, WY, 19 cars, 55 mph.

A photograph postcard showing Union Pacific (UP) 816, 4-8-4, on passenger train No. 2-8, "The Challenger", east of Cheyenne, WY, 20 cars, 50 mph.

A photograph postcard showing Union Pacific (UP) 844, 4-8-4, on 1st section of passenger train No. 1-8, "The Challenger", east of Cheyenne, WY, 21 cars, 55 mph.

A photograph postcard showing Union Pacific (UP) 1915, 2-8-2, Cheyenne, WY.

A photograph postcard showing Union Pacific (UP) 2866, 4-6-2, and 9011, 4-12-2, on mixed freight extra, east of Cheyenne, WY, 81 cars, 40 mph.

A photograph postcard showing Union Pacific (UP) 3573, both 2-8-8-0's, on westbound freight near Corlett, WY, 60 cars, 30 mph.

A photograph postcard showing Union Pacific (UP) 3578, 2-8-8-2, on eastbound freight extra, west of Cheyenne, WY, 65 cars, 20 mph.

A photograph print showing Union Pacific (UP) 3604, 2-8-8-0, Cheyenne, WY.

A photograph print showing Union Pacific (UP) 3704, 2-8-8-0 (simple), Cheyenne, WY.

A photograph print showing Union Pacific (UP) 3906, 4-6-6-4 (Alco), Cheyenne, WY.

A photograph postcard showing the Union Pacific (UP) 9046 & 9056, 4-12-2's, on a westward freight extra near Borie, WY, 84 cars, 25 mph.