Author: HAZMD (Daniel Lyman)

Description

HAZMD (Daniel Lyman). ‘1T0 Terrestrial magnetism. Results of wagntic observations made...in 1916. Washington, 1917. See UNITED STATES OF AMERICA. Departments of State and Official Bodies. Department of nrce Coast and Geodetic Survey. [Special Publicationsj No. 42.

Card ID: 426