Thus much being introduced upon the properties of mercury and its preparations, as applicable to the convenience of those who may not have entered into medical disquisition, it becomes necessary to advert to its use, now become so evidently efficacious in many of the disquietudes and disorders to which horses (as well as ourselves) are so constantly liable. The only modes by which it can be with prudence and safety administered to a horse, is either in a course of PURGATIVES, in the form of CALOMEL incorporated with the cathartic ingredients, or introduced as an ALTERATIVE, by throwing _daily_ very small quantities of that article into the system; or the better alternative (if meant as an alterative) of giving the ÆTHIOP'S MINERAL, in doses of two drachms each, every morning, mixed up with a cordial ball. Much DANGER, and many LOSSES, having recently occurred with individuals from a too free use of _calomel_ in PURGING BALLS, where horses, from a certain degree of constitutional irritability, or a want of proper care and attention during their physic, have died in the most excruciating agonies, with only _two_ or _three_ drachms (unless erroneously weighed in the shops) of calomel; it certainly will be the most PRUDENT, evidently the most SAFE, to adopt the three gradational quantities of a drachm, a drachm and a half, or two drachms, according to the size, strength, and constitution, of the horse, taking care never to exceed that quantity even with the strongest. MERCURY—was the name of a horse, that, as a RACER, and afterwards a STALLION, stood very high in sporting estimation. He was bred by the late COLONEL O'KELLY; foaled in 1778; was got by _Eclipse_ out of a TARTAR mare, who was likewise the dam of _Whitenose_, _Maria_, _Antiochus_, _Venus_, _Jupiter_, _Adonis_, _Lilly of the Valley_, _Volunteer_, _Bonnyface_, and _Queen Mab_. After having acquired considerable celebrity as a good runner, and proved himself equal to any horse of his time, he became a favourite STALLION in the possession of LORD EGREMONT, where he has produced a numerous progeny, including a very great number of winners, many of much note; and amongst the rest, the following celebrated horses, some of whom are stallions in high reputation: _Calomel_, _Sublimate_, _Hippolyta_, _Mercutio_, _Old Gold_, _Precipitate_, _Quicksilver_, _Young Mercutio_, _Felix_, _Cinnabar_, _Mother Bunch_, _Hermes_, _Pill Box_, _Silver_, _Transit_, _Gohanna_, _Caustic_, _Stadholder_, _Buckingham_, &c. &c. MESHES—are the vacancies in all kinds of NET-WORK, of which there are various sorts, with their meshes of different dimensions; as the _gate-net_, _flue-net_, _tunnel-net_, _drawing-net_, _casting-net_, &c. &c. as adapted to their distinct uses, for taking either FISH or FOWL.