This notebook is a continuation of N-01-04-16. The only dated entries are from April 1901. It contains notes by Edison and an unidentified experimenter regarding tests of various alloys for use in thermocouples. The metals tested include antimony, bismuth, lead, nickel, tin, and zinc. At the beginning of the book is a drawing by Edison illustrating the apparatus used in the experiments. The front cover is labeled \"Thermo Battery Alloys & Experiment.\"" The pages are unnumbered. Approximately 100 pages have been used.