1. Meteorological report for the year 1885;Rowell;Journal of the Straits Branch of the Royal Asiatic Society,1889
2. The probable effects on the climate of Pinang of the continued destruction of its hill jungles;Logan;Journal of the Indian Archipelago and Eastern Asia,1848
3. A brief history of geomagnetism;Multhauf;Smithsonian Studies in History and Technology,1987
4. Abstract of the weather for 1828, showing temperature, rainfall and winds for each month;Caswell;Observations on the Medical Topography of Singapore,1830
5. Sponsored research in geomagnetism 130 years ago;Green;History of Geophysics,1984