For the past 175 years, the The National Library of Medicine in Bethesda has been building the world’s largest collection of biomedical images, artifacts, and ephemera. With more than 17 million items spanning ten centuries, it’s a treasure trove of rare, obscure, extravagant wonders, most of which remain unseen by the public and unknown even to historians, librarians, and curators. Until now.

Hidden Treasure, following on the heels of The Art of Medicine, is an exquisite large-format volume that culls some of the most fascinating, surprising, beautiful, gruesome, and idiosyncratic objects from the Library’s collection in 450 full-color illustrations. From rare “magic lantern slides” doctors used to entertain and cure inmates at the St. Elizabeth’s Hospital for the Insane to astonishing anatomical atlases to the mimeographed report of the Japanese medical team first to enter Hiroshima after the atomic blast, each of the curious ephemera is contextualized in a brief essay by a prominent scholar, journalist, artist, collector, or physician. What results is a remarkable journey not only into the evolution of mankind’s understanding of the physicality of being human, but also into the evolution of librarianship itself, amidst the age of the digital humanities.

Michael North, Jeffrey Reznick, and Michael Sappol remind us in the introduction:

It’s no secret that nowadays we look for libraries on the Internet — without moving from our desks or laptops or mobile phones… We’re in a new and miraculous age. But there are still great libraries, in cities and on campuses, made of brick, sandstone, marble, and glass, containing physical objects, and especially enshrining the book: the Library of Congress, Bibliotheque Nationale de France, the British Library, the New York Public Library, the Wellcome Library, the great university libraries at Oxford, Harvard, Yale, Johns Hopkins, and elsewhere. And among them is the National LIbrary of Medicine in Bethesda, the world’s largest medical library, with its collection of over 17 million books, journals, manuscripts, prints, photographs, posters, motion pictures, sound recordings, and “ephemera” (pamphlets, matchbook covers, stereograph cards, etc.).

(Also see how Darwin’s photographic studies of human emotions changed visual culture forever.)

Thoughtfully curated, beautifully produced, and utterly transfixing, Hidden Treasure unravels our civilization’s relationship with that most human of humannesses. Because try as we might to order the heavens, map the mind, and chart time in our quest to know the abstract, we will have failed at being human if we neglect this most fascinating frontier of concrete existence, the mysterious and ever-alluring physical body.

Images courtesy of Blast Books / National Library of Medicine