This notebook covers the period January 1890-April 1893. All entries are by Edison. The book contains notes, drawings, and calculations relating to ore milling, including what appears to be a list for a patent caveat. There are also electric railway drawings and notes for a series of chemical experiments. The front cover is labeled \"#583\""; the number has been crossed out. The inside front cover is inscribed \""#583 T A Edison Jan 4. 90.\"" The book contains 182 numbered pages and has been used in both directions. Two pages were removed before the book was paginated.

The notebook pages appear in the following order: 1-147, 182-152.

Blank pages: 2-3, 48-139, 148-151."