Measuring the Variation of Ground Resistivity with a Megger (open access)

Measuring the Variation of Ground Resistivity with a Megger

Technical paper issued by the Bureau of Mines over tests conducted on ground resistivity with a megger. The results of the tests are presented and discussed. This paper includes tables, and illustrations.
Date: 1928
Creator: Lee, F. W.
System: The UNT Digital Library
Geophysical Prospecting: Some Electrical Methods (open access)

Geophysical Prospecting: Some Electrical Methods

Technical paper issued by the Bureau of Mines over experiments in electrical methods. The methods and equipment used are presented and described. This paper includes tables, illustrations, and photographs.
Date: 1928
Creator: Eve, A. S. & Keys, D. A.
System: The UNT Digital Library
Experiments in Underground Communication Through Earth Strata (open access)

Experiments in Underground Communication Through Earth Strata

Technical paper issued by the Bureau of Mines over studies in mine safety and communication. The methods and equipment used in the studies are presented and discussed. This paper includes tables, illustrations, and photographs.
Date: 1928
Creator: Ilsley, L. C.; Freeman, H. B. & Zellers, D. H.
System: The UNT Digital Library