This notebook contains details of chemical experiments relating to batteries. The cover is marked \"DONT TOUCH / BATCHELOR\"" and most of the entries are in his hand. The book also contains a list of \""Finished work\"" and a list of piecework done by various workmen. The year is probably 1875, since the entry for employee Kraft for May 20 corresponds with that in Kraft\'s 1875 time book, PN-75-01-08, Accounts Series. Approximately 20 pages of this unnumbered book have been used."