Via Medical Herbalism and medherb.com (free to all).
Archives
Practice of Osteopathy, Carl McConnell, 1899
Via Michigan State University Libraries (free to all).
Practice of Natural Therapeutics, 5th ed., H. Lindlahr, 1922
Via Soil and Health Library (free to all).
Philosophy of Physiomedicalism, J.M. Thurston, 1900
Via Soil and Health Library (free to all).
Working Man’s Family Botanic Guide, William Fox, 1852
Via Internet Archive (free to all).
Philosophy of Osteopathy, Andrew Still, 1899
Via Internet Archive (free to all).
Thermo-electrical or Natural System of Medicine, Charles Searle, 1860
Via Internet Archive (free to all).
Plain Talks on Avoided Subjects, Henry Guernsey, 1905 (c1882)
Via Internet archive (free to all).
Thus Shalt Thou Live, Sebastian Kneipp, 1894
Via Internet Archive (free to all).
Return to Nature!, Adolf Just, 1903
Via Soil and Health Library (free to all).