Subjects: RE (sorted alphabetically by title)
- Confederate States of America. Army. Virginia Infantry Regiment, 7th
- Confederate States of America -- Foreign relations
- Congo (Democratic Republic)
- Congo (Democratic Republic) -- Description and travel
- Congo (Democratic Republic) -- Discovery and exploration
- Congo (Democratic Republic) -- Fiction
- Congo (Democratic Republic) -- History -- To 1908
- Congo (Democratic Republic) -- History -- To 1908 -- Fiction
- Congo (Democratic Republic) -- Juvenile fiction
- Congo (Democratic Republic) -- Politics and government
- Congo (Democratic Republic) -- Politics and government -- 1885-1908
- Congo (Democratic Republic) -- Social conditions
- Connecticut -- History -- Revolution, 1775-1783
- Connecticut. Militia. Regiment, 24th
- Conscience -- Religious aspects -- Fiction
- Consciousness -- Religious aspects -- Hinduism
- Conservation of natural resources
- Conservation of natural resources -- United States
- Constitutional law -- Italian Republic (1802-1805)
- Cook, Frederick Albert, 1865-1940 -- Travel -- Arctic regions
- Coral reefs and islands
- Council on Foreign Relations
- Counter-Reformation
- Counter-Reformation -- England -- Fiction
- Counter-Reformation -- Germany -- Juvenile fiction