of the late (Peft'dence* 105 tions : But to haften to the fubfequent Symp- toms- ALTHOUGH fome (as before faid) were buried in Sleep, yet others fuffered by a very different Extream, and kept con- tinually waking, infomuch that frequent Repetitions of the moil: efficacious Opiates could not procure the leaft Compofure; in which Cafe, it is my Opinion, that the Membranes of the Brain are pricked and vellicated by poilbnous Svkula , beiides which alfo thofe foft, dewy Moiftures upon the Brain, necefTary for its Relaxation to fleep, are diffipated and exhaled by the burning Heat of the Fever ^ fo that the Spirits are, as it were, fet on Fire, and Inflammations raifed, not to be again extinguiihed, and frequently like- wife Mortifications of the Brain. BUT the moft. remarkable Symptoms of this Clafs, is the Palpitation of the Hearts the Ancients conject-ur'd that FefHlential Aura to have a fpecifick Contrariety to the Nature of that Organ , and it muflbe confeiTed that in the late Sicknefs this Complaint was very grievous ^ but yet I cannot fee how this Ve- nom fhould more particularly be pointed againft the Heart, than any other of the VI [- H 4 cera 9
