Sidelights on Relativity – Albert Einstein (1922) (1st ed)
Trapping Wild Animals in Malay Jungles – Charles Mayer (1921)
The Revolution in Physics – Louis de Broglie (1953) (1st ed)
Physiography: An Introduction to the Study of Nature – Thomas H. Huxley (1881)
Visions of Delight: The Singapore Botanic Gardens Through the Ages (1989) (1st ed)
Plant Life in Malaya – R E Holttum (1961)
The Canon of Medicine – Avicenna
Malayan Safari – Charles Shuttleworth (1965) (1st ed)
Gardening in the Lowlands of Malaya – Holttum (1953) (1st ed)
The Complete Writings of Dr. Eduardo A. Quisumbing on Philippine Orchids (1st ed)
History of Western Science – John Gribbin
The Descent of Man – Charles Darwin (1909)
