Search U.S. government technical reports digitized or harvested by TRAIL.
Depth attainable by electrical methods in applied geophysics
Geophysical investigations at Caribou, Colo.
How to compute tables for determining electrical resistivity of underlying beds and their application to geophysical problems
Results of some magnetic measurements on dikes,with experiments upon geophysical differentiation of nickel-ore deposits in the Sudbury district, Ontario, Canada
A magnetic study of some iron deposits