Notebooks
Found in 2 Collections and/or Records:
Joshua Gilpin notebook
Joshua Gilpin (1765-1841) was a Philadelphia merchant and paper manufacturer. His notebook describes the process of chlorine bleaching, with drawings and formulae.
Joshua Gilpin notes on bleaching process of paper on microfilm
Joshua Gilpin (1765-1841) was a Philadelphia merchant and paper manufacturer. The collection includes microfilm copies of Gilpin's notes on the bleaching of pulp in the manufacture of paper, with others on the same subject by Lawrence Greatrake (manager of the Gilpin mills) and William Stidolph.