"Arnold Arboretum." . . "China" . . . . "Papers of Joseph Francis Charles Rock" . . . . . . . "The primary content of Joseph Rock Papers at the Arnold Arboretum consists of material created during Rocks expeditions to China and Tibet for the Arboretum during the Years 1924-1927. The second group of papers is a collection of unpublished manuscripts on political events during his time in China and his observations of Chinese tribes and customs." . . . . . . . . . . . "Field notes" . . "Manuscripts (for publication)" . . . . . . . . . . .