It contains a crystalline bitter principle which can be separated from it by alcohol. Like _Theine_, it is an alkaloid, and is called _Cocaine_; but it is not harmless, as, in many particulars, and in its physiological action upon the system, it resembles _Atropine_, the alkaloid of the deadly nightshade. It also has a tannic acid, which gives a deep brownish green colour to the _per_ salts of iron. So we see in its constituents it closely resembles the _Thea Sinensis_, only it is more powerful in its effects on the human frame, and, consequently, ought not to be taken in the same quantity as we now take tea, but it is invaluable in preventing, or greatly diminishing, the ordinary and natural waste which usually accompanies bodily exertion. J. A. [Illustration] [Illustration] KOLA. Whence Kola comes—Early Mention of—Early Trade in—Cure for Drunkenness—The _Cattia edulis_—Substitutes for Tea. Kola can scarcely be called a tea, because, as a drink, it is produced from a nut, instead of a leaf, but it is put here because it contains the alkaloid _Theine_. Its botanical name is _Sterculia acuminata_, and it is a native of tropical West Africa, although now introduced into the West Indies and Brazils. The earliest mention of it to be found, is in “the Sieur Brüe’s Journey from Albreda, on the river Gambia, to Kachao, by land, in the year 1700.” Shortly after his start from Gambia, he was entertained by a Portuguese lady, and “after a short Compliment, one of her Slaves, a young, handsome Girl, but very immodestly dressed, presented the General a Pewter Basin full of _Kola_, a fruit much valued by the _Portugueze_. It is bitter, and makes the Teeth and Spittle yellow.” Barbot[141] gives a very bad illustration of the nut, and the following description. “The _Cola_ is a sort of fruit, somewhat resembling a large chestnut. The tree is very tall and large, on which this fruit grows, in clusters, ten or twelve of them together; the outside of it is red, with some mixture of blue; and the inside, when cut, violet colour and brown. It comes once a year, is of a harsh, sharp taste, but quenches the thirst, and makes water relish so well, that most of the _Blacks_ carry it about them, wheresoever they go, frequently chewing, and some eat it all day, but forbear at night, believing it hinders their sleeping. The whole country abounds in this _Cola_, which yields the natives considerable profit, selling it to their neighbours up in the inland; who, as some _Blacks_ told me, sell it again to a sort of white men, who repair to them at a certain time of the year, and take off great quantities of it. These white men are suppos’d to be of _Morocco_ or _Barbary_, for the _English_ of _Bence_ island assur’d me, there was a great quantity carry’d yearly by land to _Tunis_ and _Tripoli_, in _Barbary_.”