The Carnegie Institution of Washington . DEPARTMENT OF TERRESTRIAL MAGNETISM. Director, L. A. Bauer. Address, 36th Street and Broad Branch Road, Washington, D. C. J. P. Ault. F. Brown. C. R. Duvall. H. M. W. Edmonds. C. K. Edmunds. C. C. Ennis. PRESENT INVESTIGATORY STAFF. H. W. A. F. C. A. Luke. S. J. ]\ C. J. D. E. Sawyer. H. R. F. G. F. Wallis. J. A. WlDMER. D. M. Wise.

---

Size: 1252px × 1995px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookdecade1910, bookidcu31924073915898, booksubj