Photograph of an ant heap and a granite boulder in a field in [South Africa?] in the early 20th century.

Photograph of an ant heap in a field at Beardman's [farm in South Africa?] in the early 20th century.

Photograph of ant heaps in a woodland field in Africa in the early 20th century.

Photograph of two men exterminating white ants from beneath a tree on the Rantau Panjang Estate, Malaysia in the early 20th century

Photograph of three pairs of cattle being driven by a man with a hand plough over ant heaps in a field in Africa in the early 20th century.

Photograph of men removing an ant heap in a field in Africa in the early 20th century.

Photograph of a tree growing on an ant heap in [South Africa?] in the early 20th century.

Photograph of a tree growing on an ant heap in [South Africa?] in the early 20th century.

Illustration of various types of White-Ant: a) Queen white-ant read to deposit eggs; b) Working neuter; c) Soldier neuter; d) Male pupa; e) Female pupa; f) Winged white-ant