- National Surgical Institute1
- National celebration of the centenary of the birth of Louis Pasteur1
- National headquarters1
- National portrait gallery of eminent Americans: including orators, statesmen, naval and military heroes, jurists, authors, etc., etc1
- National portrait gallery of eminent Americans: including orators, statesmen, naval and military heroes, jurists, authors, etc., etc (Volume 1)1
- National portrait gallery of eminent Americans: including orators, statesmen, naval and military heroes, jurists, authors, etc., etc (Volume 2)1
- National sanitarium for the treatment of pulmonary diseases: remarks of Hon. Jacob H. Gallinger, of New Hampshire, in the Senate of the United States, Monday, April 11, 18921
- Natural and artificial lactation1
- Natural and artificial salicylic acid, compared1
- Natural and statistical view, or picture of Cincinnati and the Miami country: illustrated by maps : with an appendix, containing observations on the late earthquakes, the aurora borealis, and south-west wind1
- Natural force: a new view1
- Natural history and pathology of trichinous infection of men and animals1
- Natural history catalogue1
- Natural history of bezoar stones, calculi, and other animal concretions1
- Natural history. No. 1, On the muridae1
- Natural law applied to etiology1
- Natural selection and crime1
- Natural selection, social selection, and heredity1
- Nature and art in the cure of disease1
- Nature in disease: an address before the Norfolk District Medical Society of Massachusetts, at the Annual Meeting, May 12, 18521