Location of Virginia industries. A series of pictorial maps showing the approximate location of the various types of manufacturing, mining, and transportation equipment establishments in Virginia as of 1947.

Based on the 1947 Directory of Industrial Eestablishments prepared by the Virginia State Chamber of Commerce, and intended as an aid in the use of the annual directory. Transparent overlay map, in pocket.

Inspection and testing of mine-type electrical equipment for permissibility /

Includes bibliographical references.