[41] This, according to our Author's Estimation of the Pot-Measure at _Berne_, which is that he always means, and which he says contains exactly (of Water we suppose) fifty one Ounces and a Quarter (though without a material Error it may be computed at three Pounds and a Quarter) will amount at least to nine Pounds and three Quarters of Matter, supposing this no heavier than Water. By Measure it will want but little of five of our Quarts: a very extraordinary Discharge indeed of _Pus_ at once, and not unlikely to be attended by the Event which soon followed. _K._ Another Crisis of the Rheumatism has happened by a kind of Itch, which breaks out upon all the Parts adjacent to the Seat of this Disease. Immediately after this Eruption the Pains vanish; but the Pustules sometimes continue for several Weeks. Sec. 176. I have never observed the Pains to last, with considerable Violence, above fourteen Days, in this Species of the Rheumatism; though there remains a Weakness, Numbness, and some Inflation, or Puffing, of the adjoining Parts: and it will also be many Weeks, and sometimes even Months; especially if the Distemper attacked them in the Fall, before the Sick recover their usual Strength. I have known some Persons, who, after a very painful Rheumatism, have been troubled with a very disagreeable Sensation of Lassitude; which did not go off till after a great Eruption, all over the Body, of little Vesications or Blisterings, full of a watery Humour; many of them burst open, and others withered and dried up without bursting. Sec. 177. The Return of Strength into the Parts affected may be promoted by Frictions Night and Morning, with Flannel or any other woollen Stuff; by using Exercise; and by conforming exactly to the Directions given in the Chapter on Convalescence, or Recovery from acute Diseases. The Rheumatism may also be prevented by the Means I have pointed out, in treating of Pleurisies and Quinsies. Sec. 178. Sometimes the Rheumatism, with a Fever, invades Persons who are not so sanguine, or abounding in Blood; or whose Blood is not so much disposed to Inflammation; those whose Flesh and Fibres are softer; and in whose Humours there is more Thinness and Sharpness, than Viscidity and Thickness. Bleeding proves less necessary for Persons so constituted, notwithstanding the Fever should be very strong. Some Constitutions require more Discharges by Stool; and after they are properly evacuated, some Blisters should be applied, which often afford them a sensible Relief as soon as ever they begin to operate. Nevertheless they should never be used where the Pulse is hard. The Powder No. 25 answers very well in these Cases.