Sponsored by the Seremban branch of the Historical Society of Malaya, Parkinson spoke on Tin Mining at the King George V School, Seremban. He said, in the past, Chinese labourers were imported from China at $32 a head to work the tin fields of Malaya. He said that mining developed steadily after British protection had been established and that tin from Negri Sembilan in the 1870s came from Sungei Ujong and Rembau, and worked with capital from Malacca. He noted that Chinese working side-by-side with Europeans, did better with their primitive methods and made great profits when they took over mines that Europeans abandoned.