Absorption spectra chart from "Practical Organic and Biochemistry"
The Medical Heritage Library (MHL) is a digital curation collaborative among several medical libraries which promotes free and open access to quality historical resources in medicine. The MHL is currently digitizing books and journals and is working to expand to the digitization of archival materials and still images. In 2010, the MHL began digitizing titles, mainly monographs, in a variety of medical history and related fields including chemistry, nursing, dentistry, audiology, physiology, psychology, psychiatry, biological science, hydrotherapy, weather, veterinary medicine, gardening, physical culture, and alternative medicine chosen for their scholarly, educational, and research value. Since the inception of the project, materials in audio and video formats have been added to the collection.