Experience confirms these Reasonings very much, for the Digestion of Chocolate is soon brought about without Trouble, without Difficulty, and without any sensible rising of the Pulse; the Stomach very far from making use of its Strength, acquires new Force. And I can farther say, upon my own Knowledge, that I have seen several Persons who had but weak Digestion, if not quite spoiled, who have been entirely recovered by the frequent Use of Chocolate. SECT. III. Chocolate speedily repairs the dissipated Spirits and decay'd Strength. If Chocolate did not produce this Effect, but only as it is very nourishing, it would but have this Property in common with the most juicy Aliments, and such as are most proper to furnish a good Quantity of Blood and Plenty of Spirits: but its Effects are far more speedy; for if a Person, for Example, fatigued with long and hard Labour, or with a violent Agitation of Mind, takes a good Dish of Chocolate, he shall perceive almost instantly, that his Faintness shall cease, and his Strength shall be recovered, when Digestion is hardly begun. This Truth is confirmed by Experience, tho' not so easily explained by Reasoning, because Chocolate sensibly appears to be soft, heavy, and very little disposed by any active Quality to put the Spirits in motion; however, being resolved to neglect nothing that is likely to unfold the Cause of an Effect so wonderful, I undertook one day the _Chymical Analysis_ of Chocolate, and altho' prejudiced that I should discover nothing this way but a superficial Knowledge, yet I was willing to flatter myself that my Enquiry would not be wholly fruitless. I cleansed sixteen Ounces of Kernels without burning them, I ground them in a Marble Mortar, and afterwards put them in a Glass Retort well luted; I placed it in a Reverberatory Furnace, and fixed to it a large Receiver; and after having luted the Joints well, I gave it the first Degree of Fire. The first that ascended was pure Phlegm, which dropt for about two Hours; a little white unctuous Matter swam on the top of it. The Fire being augmented, the Drops became red, and congealed as they fell into the Receiver; this lasted about two Hours. The Fire being again augmented, the Receiver was filled with white Clouds, which I saw resolve into a kind of Dew, white and unctuous, which was partly Spirit, and partly a white Oil; the red Drops however continued to the End, which was about two Hours and a half. This Operation let me know that Chocolate contains two kinds of Oil; the one Red and Fixed, which congealed it self on the side of the Vessel; and the other White and Volatile, which proceeded from the white Clouds, and resolved itself on the other side of the Receiver.