- College library1
- College of Medicine of the State University of Iowa1
- College of Physicians1
- College of Physicians and Surgeons1
- College pharmacy1
- Colored Soldiers Hospital1
- Colored guards1
- Columbine =: Aquilegia1
- Concernant le trépan1
- Concernant les accouchemens & la taille des femmes1
- Contents of standard Army-Navy package of dried plasma1
- Contributions to the theory of natural selection, a series of essays by Alfred Russel Wallace1
- Cooties also known as "lice", "gray backs", "sean squirrels", "bovhes", and ...(deleted by the censor)1
- Coptis trifolia1
- Corandrum1
- Corcoran School house1
- Coronal series1
- Corporal H. Perrin of Detroit, Mich., dresses the burned arm of a patient in the surgery tent of the 94th Evacuation Hospital, U.S. Fifth Army, Anzio area, Italy1
- Cotenea malus =: Küttenbaum1
- Coupe latérale de l'hypogastre1