Homeopathy
- Biographies of Homeopathic Physicians: Drexel University College of Medicine – 36 volumes containing biographical information of homeopathic physicians and institutional history of the Homeopathic Medical College and Hospital of Philadelphia from 1868 to 1918
- Correspondenzblatt der Homoeopathischen Aerzte: Drexel University College of Medicine – This journal, published from 1835-1836 by the North American Academy of the Homeopathic Healing Art, the first school in the United States to teach the homeopathic medicine contains case notes, observations and questions submitted by homeopathic practitioners