Graphic-locator Method in Geologic Mapping


Book Description

A description of a device for locating points on a contour map and how it has been used in geologic mapping.










Synopsis of Geologic Hydrologic, and Topographic Results


Book Description

A summary of recent scientific and economic results, accompanied by a list of publications released in fiscal 1962, a list of geologic and hydrologic investigations in progress, and a report on the status of topographic mapping.