Facsimile copy and first publication in print of the original manuscript catalogue published to mark the 125th anniversary of the founding of the National Library of Medicine, Washington, 1961. The first (manuscript) catalogue listed only 130 titles on 23 unnumbered leaves. Digital facsimile from the Hathi Trust at this link.

https://profiles.nlm.nih.gov/

"This site celebrates twentieth-century leaders in biomedical research and public health. It makes the archival collections of prominent scientists, physicians, and others who have advanced the scientific enterprise available to the public through modern digital technology."

https://archive.org/details/usnationallibraryofmedicine%26tab=about&tab=collection

In October 2018, this collection housed at the Internet Archive had over 15,700 titles.

"The National Library of Medicine (NLM), in Bethesda, Maryland, is a part of the National Institutes of Health (NIH), US Department of Health and Human Services (HHS). Since its founding in 1836, NLM has played a pivotal role in translating biomedical research into practice. It is the world's largest biomedical library and the developer of electronic information services that deliver trillions of bytes of data to millions of users every day. Scientists, health professionals, and the public in the US and around the globe search the Library's online information resources more than one billion times each year. The NLM also supports and conducts research, development, and training in biomedical informatics and health information technology. In addition, the NLM coordinates a 6,000-member National Network of Libraries of Medicine that promotes and provides access to health information in communities across the United States.

The NLM supports an extensive digitization program to preserve and make available its historical collections, which stand among the richest of any institution in the world. To this end, the NLM is a principal contributor to the Medical Heritage Library (MHL), a collaborative effort of several large medical research libraries to digitize and make available online thousands of pieces of historical medical literature. All of NLM's digitized historical content is also available through NLM's Digital Collections, and much of the content will also be available with that of other contributors on the MHL’s collections page on the Internet Archive."

https://circulatingnow.nlm.nih.gov/

"Free things like air,

Vital things like blood,

Living things like ideas…
Circulate.

"For over 175 years the National Library of Medicine’s historical collections have circulated to generations within the reading rooms of its various locations in and around Washington, DC. Now, these collections—as part of the trillions of bytes of data produced and delivered by the world’s largest biomedical library—circulate daily to millions of people around the world, including scientists, health professionals, scholars, educators, students, and the general public.

Circulating Now sustains the tradition and commitment of the NLM, and libraries everywhere, to provide knowledge and expertise freely and to inspire people and enrich lives.

Circulating Now conveys the vitality of medical history in our 21st-century world: its relevance and importance for research, teaching, and learning about the human condition.

Circulating Now evokes the living quality of the NLM’s historical collections and the stories they offer about the experience of health and disease across ten centuries and around the world."