Cassell's Natural History, Vol. 1 (of 6)Note 22 — Chapter IV · THE MAN-SHAPED APES (concluded)—THE GIBBONS[18]—1. THE SIAMANGS—2. THE TRUE GIBBONS.Reading editionHylobates hoolook.◇Copy noteReturn to CHAPTER IV. THE MAN-SHAPED APES (concluded)—THE GIBBONS[18]—1. THE SIAMANGS—2. THE TRUE GIBBONS.