This notebook, which covers the period October 1891-October 1894, is a continuation of N-91-09-03. The book contains notes and drawings by Edison regarding filament deposit experiments, nos. 20-35. There are also notes concerning related experiments, including tests of basic pH solutions for treating filaments. At the end of the book are two loose pages of notes by an unidentified experimenter. The spine is labeled "124." The book contains 197 numbered pages. Two loose pages have been inserted into the book.
Blank pages: 30-31, 66-67, 118-193.
[NA042001], Technical Note, Thomas Alva Edison, October 14th, 1891 1891-10-14
[NA042011], Technical Note, Thomas Alva Edison, October 15th, 1891 1891-10-15
[NA042039], Technical Note, Thomas Alva Edison, October 16th, 1891 1891-10-16
[NA042057], Technical Note, Thomas Alva Edison, January 4th, 1892 1892-01-04
[NA042059] Technical Note, c. 1892 1892-00-00
[NA042069], Technical Note, Thomas Alva Edison, May 5th, 1893 1893-05-05
[NA042197A], Technical Note, Unknown, October 13th, 1894 1894-10-13
[NA042197B], Technical Note, Unknown, October 14th, 1894 1894-10-14
[NA042197C], Technical Note, Unknown, October 15th, 1894 1894-10-15