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Argelander.
Argyll, Huxley and the Duke of.
Aristotle.
Arrhenius.
Asterias, Loeb on hybridisation of.
Autogamy.
Avena fatua.
Avenarius.
Bacon, on mutability of species.
Baehr, von, on Cytology.
Baer, law of von.
Bain.
Baldwin, J.M.
Balfour, A.J.
Ball, J.
Barber, Mrs M.E., on Papilio nireus.
Barclay, W.
Barratt.
Bary, de.
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Bateson, A.
BATESON, W., on "Heredity and Variation in Modern lights".--on
discontinuous evolution.--on hybridisation.
Bateson, W. and R.P. Gregory.
Bathmism.
Beche, de la.
Beck, P.
Becquerel, H.
Beebe, C.W., on the plumage of birds.--on sexual selection.
Beguyer de Chancourtois.
Bell's (Sir Charles) "Anatomy of Expression".
Belopolsky.
Belt, T., on Mimicry.
Beneden, E. van.
Benson, M.
Bentham, G., on Darwin's species-theory.--on geographical distribution.
Bentham, Jeremy.
Bergson, H.
Berkeley.
Berthelot.
Betham, Sir W.
Bickford, E., experiments on degeneration by.
Bignonia capreolata.
Biophores.
Birds, geological history of.
Blanford, W.T.
Blaringhem, on wounding.
Blumenbach.
Bodin.
Boltwood, B.B.
Bonald, on war.
Bonnet.
Bonney, T.G.
Bonnier, G.
Bopp, F., on language.
BOUGLE C., on "Darwinism and Sociology".
Bourdeau.
Bourget, P.
Boutroux.
Boveri, T.
Brachiopods, history of.
Brassica, hybrids of.
Brassica Napus.
Broca.
Brock, on Kant.
Brown, Robert.
Brugmann and Osthoff.
Brugmann.
Brunetiere.
Bruno, on Evolution.
Buch, von.
Bucher, K.
Buckland.
Buckle.
Buffon.
Burchell, W.J.
Burck, W.
Burdon-Sanderson, J., letter from.
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Butler, A.G.
Butler, Samuel.
Butschli, O.
Butterflies, mimicry in.--sexual characters in.
Cabanis.
Campbell.
Camels, geological history of.
Camerarius, R.J.
Candolle, A. de.
Cannon and Davenport, experiments on Daphniae by.
Capsella bursapastoris.
Carneri.
Castnia linus.
Catasetum barbatum.
Catasetum tridentatum.
Caterpillars, variation in.
Celosia, variability of.
Cereals, variability in.
Cesnola, experiments on Mantis by.
Chaerocampa, colouring of.
Chambers, R., "The Vestiges of Creation" by.
Chromosomes and Chromomeres.
Chun.
Cieslar, experiments by.
Circumnutation, Darwin on.
Claus.
Cleistogamy.
Clerke,
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