Apogee, a. [146].

Apotelesmatic astrology, a. [222].

Apothecæ, b. [366].

Appropriate ideas, a. [87].

Arctic circle, a. [131].

Armed magnets, b. [220].

Armil, a. [163].

Art and science, a. [239].

Articulata, b. [478].

Artificial magnets, b. [220].