Bog-iron ore
By: by J. Ross Corbin
Contributors: Pennsylvania. Bureau of Topographic and Geologic Survey
Series: Bulletin. Bureau of Topographic and Geologic Survey -- no. 59; Progress report (Pennsylvania. Bureau of Topographic and Geologic Survey) -- 59.
Publisher: Bureau of Topographic and Geological Survey
Published: 1922
Place of publication: [Harrisburg, Pa.]
Language: eng
Subjects: Iron ores; Geology
Notes: Pa. State Docs. class. no. PY G345/4.17/8:no. 59

Typescript.

Caption title.

December 12, 1922.