Subject
- Choruses, Sacred (Unison), Unaccompanied8
- Christian art and symbolism1
- Chronology, Historical – Early works to 18001
- Chronology, Historical--Early works to 18001
- Church history--Middle Ages, 600-15001
- Circumcision--Religious aspects--Judaism3
- Cisseps fulvicollus1
- Citheronia regalis1
- Cities and towns, Renaissance--Europe--Aerial views--Early works to 1800340
- Cities and towns, Renaissance--Europe--Aerial views--Early works to 1800.15
- Cities and towns, Renaissance--Europe--Maps--Early works to 1800340
- Cities and towns, Renaissance--Europe--Maps--Early works to 1800.15
- Civil law – Italy1
- Civil law – Spain1
- Civitates orbis terrarum340
- Civitates orbis terrarum.9
- Clear Oakworm Moth1
- Clearwing moths1
- Clinton's Underwing1
- Clouded Skipper1