ADAM, W., on consanguineous marriages.
ADAMS, on hereditary diseases.
ADVANCEMENT in scale of organisation.
Aegilops triticoides, observations of Fabre and Godron on. -increasing fertility of hybrids of, with wheat.
Aesculus pavia, tendency of, to become double.
Aethusa cynapium.
AFFINITY, sexual elective.
AFRICA, white bull from. -feral cattle in. -food-plants of savages of. -South, diversity of breeds of cattle in. -West, change in fleece of sheep in.
Agave vivipara, seeding of, in poor soil.
AGE, changes in trees, dependent on. -as bearing on pangenesis.