His search took him to the Sterkfontein Cave near Johannesburg in the Transvaal region in 1936, where he found skulls of adult apemen.

• 1936年，研究工作使他来到特兰斯瓦的约翰内斯堡附近的斯特方丹岩洞，在那里他找到了成年猿人的头骨。