1 Matching Annotations
  1. Mar 2025
    1. The pigmentisfrequentlymadeintoapastewithpetroleumjellyoraheavymineraloil,andanaturalorsyntheticwax;thesolublecolour,dissolvedinoleicacid,being thenmixedwiththepasteandthewholethengroundthoroughlyon«three-rollmill.