The natural history of Sokotra and Abd-el-Kuri. Being the report upon the results of the conjoint expedition to these islands in 1898-9, by Mr. W.R. Ogilvie-Grant ... and Dr. H.O. Forbes ... together with information from other available sources, forming a monograph of the islands /
Free Public Library, Museum and Walker Art Gallery (Liverpool)
Forbes, Henry O.(Henry Ogg),1851-1932.
Liverpool,
1903.