Notebook #189 N-80-00-04 (1881)
This is one of six notebooks that were probably begun on January 10, 1881. It contains essays and notes by Edward H. Johnson on gas and electric lighting and on the nature of technological innovation, which appear to be related to Edison\'s proposed book on electric light and power. (See Menlo Park Notebook #184.) The book contains 284 numbered pages.
Blank pages: 32-33, 38-39, 56-284.