N-14-09-30 (1914)



N-14-09-30 (1914)


This notebook was used during the period September-October 1914. 1914. It is the third of a four-book series, preceded by N-14-08-07 and continued by N-14-10-04. All of the entries are by Edison, except for some small notations by Sherwood T. (Sam) Moore. The entries pertain primarily to the transfer and printing process involved in disc record manufacture and to the Condensite varnish surfaces applied to record blanks during the process. Included are notes describing transfer and printing results obtained with various experimental varnish compounds, which contained different amounts of phenol, alcohol, \"para,\"" \""penta,\"" and \""6/4.\"" Additional entries relate to experiments by Jonas Walter Aylsworth to hasten condensation. Inserted into the book are several loose pages of notes by Edison that tabulate some of the results noted in this book. The notes indicate that Archie D. Hoffman also assisted Edison. The front cover is labeled \""Disc = 3.\"" The pages are unnumbered. Approximately 125 pages have been used."



Has Format


Is Part Of

Notebook Series -- Notebooks by Edison

Has Version




Courtesy of Thomas Edison National Historical Park.