21. Elephants bathing in tropical stream, Ceylon Collection: Kroch Asia Rare Materials Archive Location: Sri Lanka Date: 1900-1930 Format: Image Photographer: Keystone View Company (American publisher, 19th-20th centuries) Publisher: Keystone View Company number P93 (P-V12117).
22. Curious roots and trunk of the India rubber tree Collection: Kroch Asia Rare Materials Archive Location: Sri Lanka Date: 1900-1930 Format: Image Photographer: Keystone View Company (American publisher, 19th-20th centuries) Publisher: Keystone View Company number V12132.
23. A Big Pet of Ceylon Collection: Kroch Asia Rare Materials Archive Location: Sri Lanka Date: 1900-1930 Format: Image Photographer: Keystone View Company (American publisher, 19th-20th centuries) Publisher: Keystone View Company number 859 (33849).