Articulata of Cuvier, [38]

Ascaris, egg of, [176]

Ascidians, [55]-[57], [96]

Australia and South America, land connection, [141]

Authority, [175], [231], [232], [241]

Authority and investigation, [179]

Authority and knowledge, [104],

Axioms, [240]

[B]

Bach, Sebastian, [278]