Fortunately, his personal papers are rich in personality. Hastings House, 1974. The Rock papers are primarily field notes for various botanical collections made by Rock, along with other documents pertaining to these collections. The 1924-1927 field notes were probably given to the Gray Herbarium or the Arnold Arboretum in connection with the specimens collected by Rock for the Arboretum. How the other items arrived at the Gray is unknown.
All items are photocopies of originals.
Field notes, ca. Field notes, not arranged in numerical order, ca.