Two twigs, which have the remains of cocoons attached to them, used by Pasteur in his investigation into the diseases of silkworms Two twigs
Small bundle of twigs bearing straggly petioles, one or two remnants of leaves, provenance unknown, 1830-1930 Small bundle of twigs bearing straggly petioles 1830-1930
2 twigs with bark in envelope, presented by Field Museum of Chicago, probably from Afghanistan 1900-1930 2 twigs with bark in envelope 1900-1930