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 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