e chief part of his "extraordinary fund of information" died with him. Darwin had much correspondence with him, and always spoke of him with admiration for his powers of observation and for his judgment. The letters to Blyth have unfortunately not come into our hands. The indebtedness of Darwin to Blyth may be roughly gauged by the fact that the references under his name in the index to "Animals and Plants" occupy nearly a column. For further information about Blyth see Grote's introduction to the "Catalogue of Mammals and Birds of Burma, by the late E. Blyth" in the "Journal of the Asiatic Society of Bengal," Part II., Extra number, August 1875; also an obituary notice published at the time of his death in the "Field." Mr. Grote's Memoir contains a list of Blyth's writings which occupies nearly seven pages of the "Journal." We are indebted to Professor Newton for calling our attention to the sources of this note. -reference to letter from. -visits Down. -on Gallinaceae.
Blytt, Axel Gudbrand (1843-98): the son of the well-known systematist M.N. Blytt. He was attached to the Christiania Herbarium in 1865, and in 1880 became Professor of Botany in the University. His best-known work is the essay referred to above, but he was also known for purely systematic work in Botany as well as for meteorological and geological contributions to science. The above facts are taken from C. Holtermann's obituary notice in the "Berichte der Deutschen Bot. Gesell." Volume XVII., 1899. -essay on immigration of Norwegian flora during alternating rainy and dry periods. -letter to.
Bog-Mammoth.
Boiler, comparison with volcano.
Boissier, on plants of S. Spain.
Boissiera, crossing experiments on.
Bolbophyllum, Darwin's account of.
Bolivia, geology of.
Bollaert's "Antiquities of S. America."
Bombus, diversity in generative organs. -Psithyrus in nests of. -Pollen-collecting apparatus of male.
Bombycilla, protective colours.
Bombyx, sexes in.
Bonaparte, L., on Basque and Finnish language.
Bonatea speciosa, F. Muller on. -structure of flower.
Bonney's Edition of Darwin's "Coral Reefs." -"Charles Lyell and Modern Geology."
Bonnier, G., on alpine plants.
Boragineae, dimorphism in.
Borneo, New Zealand and Australian plants in. -temperate plants in lowlands. -possible region for remains of early man.
Bory's Flora of Bourbon.
Bosquet, cirripede monograph sent by Darwin to. -gives Darwin note on fossil Chthamalus.
Botanical collections (national) consolidation at Kew.
Botanist, Darwin as.
Botany, philosophical spirit in study of.
Boulders, transport of erratic (see also Erratic blocks). -Darwin on Ashley Heath. -in Glen Roy. -on Moel Tryfan.
Bourbon, Bory's Flora of.
Bournemouth, Darwin's visit to.
Bovey Tracey, Heer on fossil plants of.
Bower, Prof. F.O., on Welwitschia.
Bower-bird, Bartlett's experiments on. -colours discriminated by.
Bowman, W., Letters to. -supplies Darwin with facts on Expression.
Brachiopods, Morse on. -Silurian.
Brackish-water plants.
Bradshaw, H., translation of Hebrew letter by.
Brain, Owen on. -evolution in man. -Wallace on Natural Selection and Evolution of.
Branchipus, Schmankewitsch's experiments on.
Branta, mentioned in reference to nomenclature of Barnacles.
Brassica sinapistrum, germination at Down of old seeds.
Braun, A., convert to Darwin's views.
Bravais, on lines of old sea-level in Finmark.
Brazil, L. Agassiz's book on. -Agassiz on glacial phenomena in. -F. Muller's residence in. -plants on mountains of. -basalt in association with granite. -Darwin on origin of lakes in. -dimorphism of plants in S.
Bree, Dr., on Celts. -misrepresents Darwin.
Breeders, views on Selection held by.
Breeding, chapter in "Origin" on.
Brehm, on birds.
Breitenbach, Dr.
Brewster, Sir D., on Glen Roy.
Bridgeman.
Brinton, Dr., attends Darwin.
British Association, Meetings: Belfast (1874), Birmingham (1849), Cambridge (1862), Ipswich (1851), Leeds (1858), Liverpool (1870), Manchester (1861), Norwich (1868), Nottingham (1866), Oxford (1847), Oxford (1860), Southampton (1846), Swansea (1880), York (1881). Addresses: Berkeley, Fawcett, Hooker, Hooker on Insular Floras, (see also Hooker, Sir J.D.), Huxley on Abiogenesis, Lord Kelvin, Wallace on Birds' Nests.