by British Museum (Natural History)

1904

by British Museum (Natural History), British Museum (Natural History).

1904

by British Association for the Advancement of Science. Meeting

1879

by British Association for the Advancement of Science

1916

by British Association for the Advancement of Science. Meeting

1903

by Arthur Lister, British Museum (Natural History). Dept. of Botany, British Museum (Natural History). Department of Botany

1895

by British Association for the Advancement of Science. Meeting

1874

by British Association for the Advancement of Science. Meeting

1924

by British Museum (Natural History). Library

1922

by Botanical Society of the British Isles

1921

by Botanical Society of the British Isles

1902

by Botanical Society and Exchange Club of the British Isles

1902