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59.109 Del Norte Canal, elevation and cross section of regulator gates
13A.8.613 Sand-hill topography, All American Canal
[Miscellaneous Sites in Jacksonville, Florida]: unidentified garden; Saw palmettos, Serenoa serrulata
250 Men with wooden boxes and barrels
Photograph of Unites States troops in a boat
Culebra cut empire, looking north from Suspension Bridge showing cut completed except toe of slide on right, drainage ditch is below of canal
25110-140 Miraflores lower locks, Panama
3313.2 Steam shovel number 225, wrecked by rock slide, north of Gold Hill
3316 Concerning the Panama Canal, steam drills at work in Bas Obispo Cut
3334.2 Panama Canal, view north between Contractor's Hill left and Gold Hill Right showing Culebra region
3337 Dump at East La Boca immediately after heavy rain
3343.1 Map of the Republic of Panama
3366.1 Canal construction
3385.2 Blowing up Gamboa Dyke, looking north from hill on east side
3387.2 Culebra cut, Culebra, looking south from west bank, showing first dredge operating in cut, surface of water 70.7 feet above sea level
3388 Complete section of Pedro Miguel lock floor looking north showing chamber crane
Chain Bridge on China, Tibet, Main Highway over Tung Kwiang at Lu-Ting-Chao in West China
22-30 Proposed North Railroad Bridge over Hudson, New York City, 6 Tracks
22-35 Point Bridge, Pittsburg