Notebook #55 N-80-01-28 (1880)
This notebook covers the period January-June 1880. The entries are by Edison\'s chemist, Otto Moses, and relate to the chemical treatment of carbon filaments. There is also one entry relating to gold ore separation experiments. The book contains 21 numbered pages followed by approximately 200 unnumbered pages only a few of which were used.
Blank pages: 12-15.