Leaf beginning "p.64 = Insert at line 10. It is prepared on Laurents process by Collecting separately in the distillation those portions of the oil of Coal tar ...", Volume: 1, item: 2. Notes and annotations in 1859 edition of The Manufacture of Photogenic or Hydro-carbon Oils, MS C79. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/382403 Accessed June 02, 2024.