Blast at Bas Obispo, Sept. 19, 1907 (2/3)
"Powder used, 9,600lbs., Rock displaced 29,640 cu. yds. 72 on one side, 106 1/2 on the other. "
Handy (Photographer), Hallen (Photographer), Special Collections/University Archives (Publisher)
Blast at Bas Obispo, Sept. 19, 1907 (1/3)
"Powder used, 9,600lbs., Rock displaced 29,640 cu. yds. 72 on one side, 106 1/2 on the other. "
Handy (Photographer), Hallen (Photographer), Special Collections/University Archives (Publisher)
Tropical Foliage near Bohio
Handy (Photographer), Hallen (Photographer), Special Collections/University Archives (Publisher)
Isthmian Canal Commission - Atlantic Division Sections of Gatun Dam
Handy (Photographer), Hallen (Photographer), Special Collections/University Archives (Publisher)
Isthmian Canal Commission, Pacific Division, Pedro Miguel to Panama Bay, (map of west end of canal, and Excavation Diagram)
Handy (Photographer), Hallen (Photographer), Special Collections/University Archives (Publisher)
Isthmian Canal Commission - Atlantic Division general map: Gatun Locks and Dam
Handy (Photographer), Hallen (Photographer), Special Collections/University Archives (Publisher)
Geological cross-sections of Culebra Cut, showing sliding ground
Handy (Photographer), Hallen (Photographer), Special Collections/University Archives (Publisher)
Graphical representation of yardage, Panama Canal, July 1, 1913
Handy (Photographer), Hallen (Photographer), Special Collections/University Archives (Publisher)
Street of unknown town in Panama, all dug up
Handy (Photographer), Hallen (Photographer), Special Collections/University Archives (Publisher)
Ruins of a Sentry Box, Old Panama, March 1907
Handy (Photographer), Hallen (Photographer), Special Collections/University Archives (Publisher)