Anorthosites, [192]

Apatite, [200]

Archæan, [115], [127], [184], [186], [190]-[209], [211]-[220]

Archer, Lieut., [107]

Archer fiord, [107], [228]

Arctic, [70], [251]

Arctic circle, [43], [77]

Arctic ice—

Smith sound, [45]

Cape Sabine, [48]