Cinnamomum cassia

_Cassia oil_, distilled from the leaves of Cinnamomum cassia, and shipped to this country from China in lead receptacles.

The Handbook of Soap Manufacture H. A. Appleton

Egypt. qad, the aromatic bark of Cinnamomum cassia, Bl., of India, an ingredient of the oil of unction (Ex., xxx, 24), and the

The Catholic Encyclopedia, Volume 12: Philip II-Reuss 1840-1916 1913

-- The essential oil of cassia is procured by distilling the outer bark of the _Cinnamomum cassia_. 1 cwt. of bark yields rather more than three quarters of a pound of oil; it has a pale yellow color; in smell it much resembles cinnamon, although very inferior to it.

The Art of Perfumery And Methods of Obtaining the Odors of Plants George William Septimus Piesse 1851