Leaf beginning "Prof Newberry thinks that petroleum and asphalts have not their source ..."

Leaf beginning "Prof Newberry thinks that petroleum and asphalts have not their source ...", Volume: 1, item: 4. 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/382405 Accessed December 24, 2025.