Notebook #74 N-80-01-02.3 (1880)
This notebook covers the period January-March 1880. It was used, probably by Albert Herrick, to keep a record of lamps burning at the Menlo Park laboratory complex. An index to the lamps appears at the end of the book. The label on the front cover is marked \"Record of Lamps.\"" The book contains 284 numbered pages."