This notebook is undated with the exception of one entry for December 21, 1880. It was kept by an unknown member of the laboratory staff and was used primarily to record cable codes for shipments of bamboo. The book also contains a copy of the "instructions given to Messrs. Russell & Co - Hong King and Canton." The label on the front cover is marked "Cable Words." There are 284 numbered pages. Only the instructions have been selected. Courtesy of Thomas Edison National Historical Park.