But if the Spirit of Vitriol and the Mucilage are first mixed, and the austere Liquor be afterwards added, they make a very considerable and plentiful _Coagulum_, which will only be broken into smaller Parts, and not be dissolved in Water. _Aqua Fortis_, and the Decoction of Galls being both dropt into some of the Mucilage, made a white _Coagulum_, which likewise was not dissolved in Water, altho’ with _oleum Tartari per Deliquium_, and so with Spirit of _Sal Ammoniac_ dropt into it, I presently dissolved it. I found likewise, that the _Coagulum_ made with the Infusion of Pomegranate Peel, red Roses and Balaustia, being mixed with some of the Mucilage, to which an Acid had been put, made the _Coagulum_ more firm, so that it would not dissolve in fair Water; but yet the Oyl of Tartar by _Deliquium_, and the Spirit of _Sal Ammoniac_, did the Business in all of them. The _Coagulum_ of the Mucilage made with an Acid, and the Infusion of the _Peruvian_ Bark and several other Astringents, I kept and dried, which when they were first put to the Teeth, seemed a little gritty, though after they were moist they were of a softer Nature. All the Mixtures made of the Mucilage with an Acid and an Austere, produced not only a plentiful Coagulation of a white Colour, but such a one as was of a thicker Consistence, and not Soluble in fair Water, as that was which was made with an Acid only. CHAP. IV. It is now proper to apply what hath been hitherto delivered, to the Distemper we are treating of, that from thence the Powers of Milk in the Cure may more clearly appear. We have shewed before how the Mass of the Blood becomes impregnated with a saline Acrimony, more or less Acid, from a sharp and indigested Chyle, and the Powers of Digestion weakned and impaired; whence is easily explained how the Lymph and acrid _Serum_ is communicated to the mucilaginous Glands, and the smallest Branches of the Arteries, so as to infect and coagulate the Mucilage, in Proportion to the Quantity of Salts they contain. The Fibres of the Membranes and Tendons are vellicated by the Acrimony of those Salts, so as to occasion intolerable Pain, and affect the Nerves to a very great Degree. SECT. 2.