Vegetable gums and oils in early chemistry notes
The text discusses gums from vegetables and resins, clarifying that gums differ little from other vegetable substances in inflammation response. It explains unsteamed oils, expressed oils, and methods to obtain them by pressure, heat, or boiling in water. The passage mentions linseed oil, olives, soap formation with caustic alkali, and references spermaceti and waxes as unéious oils.