Walter Rogers Johnson

• A System of Natural Philosophy: Designed for the Use of Schools and Academies, on the Basis of ..
• Notes on the Use of Anthracite in the Manufacture of Iron: With Some Remarks ..
• Report of the Commissioners Appointed by Authority of the City Council: To ...
• The Scientific Class-book; Or, A Familiar Introduction to the Principles of Physical Science ..
• Report of a Survey and Exploration of the Coal and Ore Lands Belonging to the Allegheny Coal Company