Photograph of a man climbing a Ficus Elastica (Getah Rambong), a native rubber tree in a forest in the early 20th century.

Photograph of Messrs. Sauer and Hartz watching a man gather rubber from a Ficus elastica tree in the early 20th century.

Photograph of a flowering branch of a Para rubber tree, (Hevea brasiliensis).

Three separate photographs: 1. Funtumia Elastica, 14 month old in Kiwala, Uganda; 2. Funtumia Elastica, an experiment in high tappingin the Mabira Forest; and 3. Ceara (Manihot Glaz) , 8 months old in Kiwala, Uganda.

Photograph of Funtumia Elastica, an African rubber tree with medicinal properties, at the Experiment Station in Issororo, Guyana, South America.

Photograph of a rubber tree that was tapped using the half herring bome paring system done by Dr. Huber with his tapping knife in the early 20th century.

Illustrations of two branches of Hevea aangtast door Nectria.

Images of Hevea brasiliensis at 18 months old x 1/6 and Hevea brasiliensis at 1 month old x 1/2.

Illustration by Henry Wickham of a man standing next to a 30 year old Hevea Braziliensis tree at the Henavatogoda Gardens, Ceylon, [Sri Lanka] in 1906. The text beneath the image notes that the drawing is from a photograph by Ivor Etherington, Esq. of Colombo.

Photographs of rubber trees: the image on the left shows a Hevea rubber tree showing two Basal V tapping marks and the image on the right shows a Rambong (ficus elastica) rubber tree in the early 20th century.