Ball, Samuel. <i>An Account of the Cultivation and Manufacture of Tea in China : Derived from Personal Observation during an Official Residence in That Country from 1804 to 1826 : and Illustrated by the Best Authorities, Chinese as Well as European : with Remarks on the Experiments Now Making for the Introduction of the Culture of the Tea Tree in Other Parts of the World</i>. Longman, Brown, Green, and Longmans, 1848.