Production of pine resin balsams for microscopical and optical uses.
D001453:Balsams; D008853:Microscopy; D012116:Resins, Plant; D012117:Resins, Synthetic
D001453:Balsams; D012116:Resins, Plant; D012117:Resins, Synthetic; C013893:rosin
BALSAM; RESINS