This folder contains undated notes, drawings, memoranda, and cost estimates. All of the items are by Edison. Included is material relating to saucers, burners, and similar equipment, possibly intended for the assay work of prospecting parties in the Sudbury district of Ontario. Also included are two versions of a document entitled "Design for Small Nickel Concentrating Works," possibly written during the period 1901-1904. One version has torn pages and may be incomplete.

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