A photograph print showing the Oregon & Northwestern (ONW) 26, 2-8-2, Burns, OR.

A photograph postcard showing Union Pacific (UP) 7034, 4-8-2, on passenger train No. 25, "Pacific Limited", crossing Snake River Bridge east of Huntington, OR, 10 cars, 15 mph.

A photograph print showing Union Pacific (UP) 5414, 2-10-2, on westbound freight extra, Bonneville, OR.

A photograph postcard showing Union Pacific (UP) 3936, 4-6-6-4, on passenger train 1-25, "Pacific Limited", at North Powder, OR, 6 cars, 20 mph.

A photograph postcard showing Union Pacific (UP) 3936, 4-6-6-4, on passenger train 1-25, "Pacific Limited", approaching Oxman, OR, 6 cars, 40 mph.

A photograph postcard showing Union Pacific (UP) 3936, 4-6-6-4, on passenger train 1-25, "Pacific Limited", West of Telocaset, OR, 6 cars, 30 mph.

A photograph postcard showing Union Pacific (UP) 3661, 2-8-8-0, Encina, OR.

A photograph postcard showing Union Pacific (UP) 3803, 2-8-8-0, on mixed freight No. 267, "Kansas-Oregon Special", with loco 3608, 2-8-8-0 pushing at rear, in the Blue Mountains near Montanic, OR, 57 cars, 15 mph.

A photograph print showing Union Pacific (UP) 3227, 4-6-2, on passenger train No. 44, "Pacific Unlimited", Portland, OR.

A photograph postcard showing Union Pacific (UP) 818, 4-8-4, on a passenger train No. 18, near the bridge over the Snake River, east of Huntington, OR, 17 cars, 20 mph.

A photograph print showing the Southern Pacific (SP) 3757, 2-10-2, on 1st section of freight Train No. 664, Salem, OR.

From introduction: "In this paper are assembled and summarized many subjects relating to the copper industry in North America. Production of mines and districts, history of the industry in North America. Production of mines and districts, history of the industry, geology, of the principal deposits, and mining methods and costs are discussed."