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¶Here begynneth the Formularye of the aydes of apostemes and pustules ordeyned at Parys by mayster Guydon of Cayllyac Cyrurgyen and doctour in medycynes at Mount pyllier.
Bycause that after the doctry∣ne of Galyen in tertio de ingenio sa∣nitatis lykewyse as of yt workeman is the takynge of the essence of the dysease. Also the scyence of thynges wherof it is gyuen it behoueth that it procede of the same / I than Antydotary ordynary in the scy∣ence of apostemes wherby the locall remedyes of the same apostemes shall be accomplysshed / but we must fyrste knowe the matter of the same. And that done may be foūde and chosen the entencyon cutatyfe after the natures of them. And I say for certayne that it is ryght and artyfycyall waye to worke as it is proued in ye treatyse before alleged. Than I wyll put in this present formularye the knowledge of apostemes & the aydes wherby may be gyuen locall remedyes after the intencyon of Galyen, Rasis, and Auycen, suche as I can com∣pryse in theyr doctryne. And merueyle you nat yf