CHAP. X. Of the Strangles.
FEW or nor Horses that are foal'd in this Country escape being troubl'd with the Strangles, which is a Throwing forth or Evacuation of superfluous Humours ga∣ther'd in the Bodies of Foals, either according to the usual Method of Nature thro the Nostrils, or by Swellings or Boils under the Throat between the two Jaw-bones. They seem to differ from the Small-Pox in Children, only with respect to the Place where the Humours are expell'd.
I know there are various Opinions concerning the Cause of this Distemper: For some look for its Original in the Mare's Womb, from whence (they think) the Foal brings the Seeds of it, which some Years after, when the natural Heat is consi∣derably augmented, break forth, and agitate the Humours, which by degrees are discharg'd on some part of the Body, where they usually come to Suppuration. Others are of Opinion that the Change of Nourishment, that is, of Milk to more solid Food, makes a notable Alteration in the Body, both in the Humours, and in the Parts that are nourish'd by 'em, which is follow'd by a Fermentation, that obliges Nature to make an Attempt to expel the Remainders of the first Nourishment, which serve for a Fer∣ment in this Distemper. And in the last place there are some who believe that all Li∣quors have their peculiar times of Fermentation, as Wine, Beer, Cyder, and Syrups boil, cast forth a Scum, and are purify'd, some sooner, and others later, according to the various Constitutions of the Liquors; and from hence they infer that the Blood of Animals has different times of Purification, for which reason Men are seiz'd with the Small-Pox at diverse Periods of their Age, but there not being the same Variety in the Constitution of Horses, they are usually troubl'd with the Strangles about the Third or Fourth Year of their Age. But the Consideration of the Cause of this Distemper is of no great Importance for the Cure: and 'tis much more necessary to know the way by which Nature expels the Humour, which, as I intimated before, is oftentimes evacu∣ated by Swellings under the Throat, or by the Nostrils. Sometimes the Horses dis∣charge the Humour visibly by these Boils; whereas it happens not unfrequently that the Swellings are never ripen'd, the Humour being resolv'd, and insensibly transpiring thro' the Skin. But the Cure is always most certain, when the Swellings come to Sup∣puration.
Sometimes the Humour is evacuated by several Parts of the Body, as the Shoulders, Hams, the Parts above the Kidneys, the Feet, and generally whatsoever Member is weaker than the rest.
Thus 'tis voided by such Parts as have been hurt or wounded: for when Nature is ir∣ritated by her Enemy she makes an Attempt to drive it out; and 'tis certain that the stronger Parts cast their Load on the weaker. But if the Part that receives the Humour be either cold, nervous, or of small Capacity, 'tis never able wholly to discharge its unequal Burthen, but ever afterwards remains weak and infirm.
When there is only an imperfect Evacuation of the Humour, the Horse is frequently troubld with False-Strangles at the Age of Six, Ten, or Twelve Years; which being neglected degenerates to the Glanders. When the False-Strangles take their Course thro' the Nose (which rarely happens) the Horse is much more troubl'd with Sickness, than when they find another Passage: And in the general 'tis certainly the best and sasest Evacuation that is perform'd by the Kernels or Swellings under the Throat, for when they are open'd the Horse is out of danger, and even those who void the Humor by the Nose, are very much eas'd by 'em.
The most favourable time for Horses to be seiz'd with this Distemper, is when they are Foals, and run in the Meadows; for their Heads being continually bow'd down to feed on the Grass, the Evacuation is perform'd with less Trouble and Pain; and besides Grass being a moist Aliment, increases the Fluidity of the Humours, and by making