Author:
T.C. Mendenhall [Thomas Corwin Mendenhall (1841 ? 1924) American autodidact physicist and meteorologist]
Publication details:
[Printed address] United States Coast and Geodetic Survey, Washington, D.C. [18 July] 1890.
One page, 4to, fold marks, minor spotting, good condition. I beg to thank you for the facilities afforded Mr. E.D. Preston [author of The United States Coast and Geodetic Survey: its origin, development, and present status] of the U.S. Coast and Geodetic Survey, while engaged in gravity and magnetic observations at Bridgetown in May last.
