from kindled _Tobacco_; and as, according to _Aristotle_, it is the Property of Heat to collect homogeneous, and separate heterogeneous Substances, it must necessarily happen, in the very Nature of Things, that this Smoak should fuse and colliquate the Phlegm, the Receptacle of which is the Brain, which, according to _Hippocrates_, is the largest of all the Glands. I do not in the least doubt of the Truth of _Arnesæus_'s Opinion; for I think that all the Fore-runners of Catarrhs, such as Sternutations, Spittings, and Discharges of Saliva, are produced by Heat, which is the necessary Cause of Catarrhs, though not the productive Cause of the morbific Matter. Thus the celebrated _Hoffman_, in _Lib. 3. Institut. Medic. Cap. 193._ informs us, "That Heat alone, and, for the most part, of the external Kind, such as that of the Sun, or that procured by Exercise, Wine, and Aromatics, among which are _Cinnamon_ and _Saffron_, with which we so plentifully season our Aliments, is sufficient to fuse and colliquate the Phlegm, or acrid Serum." Thus a Pipe filled with the burned Wicks of Candles, gathered out of Snuffers, or with a Piece of Match used in discharging Cannons, or with a Piece of bituminous, fossile Earth, especially that of _Holland_, will procure as copious a Spitting, as a Pipe of the best _Virginian_ Tobacco. Soldiers also, and Sailors, produce the same Pleasure and Effects in themselves by smoaking kindled Paper, as are produced by smoaking _Tobacco_. Since, therefore, acrid Smoak and Heat of every Kind, conveyed to the Brain, fuse the Phlegm, and eliminate it by the _Os Ethmoides_ and _Sphœnoides_, the Nose and the Palate of the Mouth, I see no Reason why _Heurnius_ should affirm, "That it has a surprizing Faculty of drawing the Phlegm from the Mouth and Nostrils; that it is peculiarly adapted to the Brain, easily conveys its Virtues thither, and eliminates all its Sordes."