This field book is another part of a collection that is also referred to as the Rock specimen catalog. The field book documents Joseph Rock's botanical collecting efforts in China from May 1928 to November 1929. The book is comprised of a list of primarily floral specimens numbered 16001-18530. His entries typically list only scientific name, nearby location name and elevation, and height and color of the specimens. The book is arranged by collecting date, chronologically by month. Join in our efforts to transcribe the Rock specimen catalog of the Asian locales that were Joseph's passion for over a quarter of a century.