A tincture is not an essence
Preparations:
Herbal articles.
A non-fatty evaporating oil, and a concentrated single constituent.
4.1 Making essential oil
Preparations:
Medicinal herbfaq: preparations.
Olea. Oils.
Preparations:
Classic texts: USDisp 1918.
Antiseptic Oils.
Preparations:
Classic texts: Potter 1902.
Practical Notes from Foreign Journals.
Olea Volatilia. Volatile Oils, Essential Oils, Distilled Oils.
Preparations:
Classic texts: Cook 1869.
St. John's wort: EO.
Botanical name:
Preparations:
Archives: Best of the Herbal Forums: 01.2000.
