United States. Coast Survey. * 20th” .21.63 Report of Assistant F. H. Gerdes, U. S. Coast Survey, to Com- mander D. D. Porter, U.S.N., commanding mortar flotilla in the Gulf of Mexico. [New York?] 1862. 3 pp. 22cm. There is no title-page. ‘On the expedition to Lake Pontchartrain,
This card was printed at the Boston eS Public Library, June 20, 1935. D7405 — Double main card. — Unitef states. Coast Survey. (M1) — Gerdes,
Ferdinand H. (M2) — United States. Hist. Civil War. Naval affairs. (1)