- National Conference of Charities and Correction (U.S.), author.2
- National Conference of Charities and Correction (U.S.). Standing Committee on Municipal and County Charities, author.1
- National Conference of State Boards of Health. Annual Meeting 1884 : Saint Louis, Mo.) author.1
- National Convention for Revising the Pharmacopoeia 1880 : Washington, D.C.), author.2
- National Eclectic Medical Association.1
- National Health Society (Great Britain)1
- National Homoeopathic Hospital Association (Washington, D.C.) author.1
- National Institute of Pharmacy (U.S.), author.1
- National Prison Association of the United States, author.2
- National Quarantine and Sanitary Convention (1857 : Philadelphia, Pa.)1
- National Quarantine and Sanitary Convention.2
- National Quarantine and Sanitary Convention. Committee on External Hygiene.1
- National Quarantine and Sanitary Convention. Committee on the Internal Hygiene of Cities.1
- National Remedy Company.1
- National Surgical Institute.3
- Naumann, P., engraver1
- Nauwerck, Robert, author1
- Navarro y Cardona, Eduardo, author1
- Nawrocki, Felix, 1838-1902, author5
- Neave, Désiré Jean Joseph.1