Joseph Franz Rock Briefwechsel Mit E. H. Walker, 1938-1961

Hartmut Walravens, Egbert Hamilton Walker, Joseph Francis Charles Rock — 2006

Rock (1884-1962) , originally from Vienna, made his name as an explorer of the flora of his new home, the Hawaiian Islands. After WWI American institutions sent him an a botanical explorer to South China and the Tibetan border are.