Acineta, [151].
Acquired characters, meaning of, [169];
on supposed botanical proofs of transmission of, [390], [397].
Acridium migratorium, length of life of, [40].
Actinia mesembryanthemum, length of life of, [54].
Actinosphaerium, [117], [118].
Activity and length of life, [7], [8].
Adansonia, length of life of, [6].
Adler, on the formation of galls, [302].
After-effects, [403].