Cor (of plants), b. [374].
Cosmical rising and setting, a. [131].
Cotidal lines, a. [460].
Craters of elevation, b. [556].
Dæmon, a. [214].
D’Alembert’s principle, a. [365].
Day, a. [112].
Decussation of nerves, b. [462].
Deduction, a. [48].
Deferent, a. [175].