This notebook covers the period December 1879-June 1880. The entries are by Edison, Charles Batchelor, and Francis Upton and relate to electric lamps. Included are notes, drawings, calculations, and tests of lamps; a caveat by Edison; and drawings by Batchelor of a glass blowing machine for making lamp bulbs. There is also a set of notes about lamps burning at Menlo Park, which appear to be in the hand of Albert Herrick. The book contains 264 numbered pages.
Pages 6-7, 28-29, 32-33, 46-47, and 60-61 are blank; pages 37-38 and 261-262 are missing.
The caveat by Edison, ca. February 25, 1880, was published as Doc. 1907 in The Papers of Thomas A. Edison, Vol. 5. It consists of the following pages: 49-57, 63-99, 105-109. Pages 63-99 and 105-109 were copied by Charles Mott into Notebook, Cat. 997.
[N042001], Technical Note, Charles Batchelor, December 19th, 1879 1879-12-19
[N042011], Technical Note, Thomas Alva Edison, December 28th, 1879 1879-12-28
[N042013], Technical Note, Thomas Alva Edison, February 6th, 1880 1880-02-06
[N042020], Technical Note, Albert Bledsoe Herrick, January 15th, 1880 1880-01-15
[N042021], Technical Note, Albert Bledsoe Herrick, January 14th, 1880 1880-01-14
[N042049], Patent Caveat, Thomas Alva Edison, February 25th, 1880 1880-02-25
[N042111], Technical Note, Unknown, Francis Robbins Upton, June 25th, 1880 1880-06-25
[N042181], Technical Note, Unknown, Francis Robbins Upton, June 26th, 1880 1880-06-26
[N042229], Technical Note, Francis Robbins Upton, Unknown, June 28th, 1880 1880-06-28
[N042251], Technical Note, Unknown, Francis Robbins Upton, June 29th, 1880 1880-06-29