Note 1 — Chapter I
Reading edition
: The kaolin of Ceylon, according to an analysis in 1847, consists of—
Pure kaolin 70.0
Silica 26.0
Molybdena and iron oxide 4.0
100.0
In the Ming-she, or history of the Ming dynasty, A.D. 1368-1643, by Chan-ting-yuh, "pottery-stone" is; enumerated among the imports into China from Ceylon.—B. cccxxvi. p. 5.