Classic texts: Thomas 1907.
Henriette's herbal blog: Good for respiratory problems, and good as a herbal oil, too.
Classic texts: Eli Jones' Definite Medication, 1911.
Henriette's herbal blog: If you get lung grunges every year you need to strengthen your lungs.
Classic texts: Ellingwood 1910.
Archives: Best of the Herbal Forums: 10.1995.
Henriette's herbal is one of the oldest and largest herbal medicine sites on the net. It's been online since 1995, and is run by Henriette Kress, a herbalist in Helsinki, Finland.
Plant Healer Magazine: Very relevant to the practitioner.
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