Papers annotated in Roy Lancaster's hand: 'Chinese Seed Collections of Dr Joseph Rock x Axel Olsen 'Kolding', correspondence with Prof Charles Sargent, director of Arnold Arboretum, drawings from same source'
Includes photocopied correspondence and papers relating to plant collecting by J.F. Rock, including correspondence of C.S. Sargent with Axel Lange relating to dispatch of seed samples collected in China by Joseph Rock, 1926-1927, correspondence, field notes and seed lists of Joseph Rock, 1925-1960, reprint of article from the 'Journal of the Arnold Arboretum', volume XIV, 1933, relating to seeds collected by Joseph Rock in 1925 and 1926, paper headed 'Field notes – Rock's Seed Coll 1925', and folder labelled (in Danish) 'The Geographical Garden of Kolding' with copies of plant drawings
[C.S. Sargent was director of Harvard University's Arnold Arboretum, Boston, United States of America, 1872-1927; Axel Lange was curator of the University Botanic Garden, Copenhagen, 1902-1940; Joseph Rock was botanist and curator of the herbarium, University of Hawaii, 1911-1920]