This notebook covers the period December 1880-January 1881. The entries are by John W. Lawson and consist of notes and a few drawings relating to experiments on plating and chemically treating carbons. Sixteen loose pages found in this notebook were torn from another notebook and identified as "experiments tried." They appear to have been copied from a "Bk 2" and relate to the experiments recorded in Menlo Park Notebook #168. The book contains 283 numbered pages and has been used in both directions.

Blank pages: I, 20-270.

The notebook pages appear in the following order: pp.2-19; pp.283-271 Em reverse page-number order].