This notebook is undated but was probably used late in 1880. All of the entries are by Otto Moses. The first five pages contain a list by subject of the first fifty-five volumes of the Menlo Park Scrapbooks. (See Menlo Park Scrapbook Series.) On page 101 is a list of pamphlets relating to technical subjects. The label on the front cover is marked "Library Catalogue." The book contains 284 numbered pages.