The microscope made easy: or, I. The nature, uses and magnifying powers of the best kinds of microscopes ... II. An account of what surprizing discoveries have been already made by the microscope / By Henry Baker.

  • Henry Baker
Date:
1754
Catalogue details

Licence: Public Domain Mark

Credit: The microscope made easy: or, I. The nature, uses and magnifying powers of the best kinds of microscopes ... II. An account of what surprizing discoveries have been already made by the microscope / By Henry Baker. Source: Wellcome Collection.

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    [ 1^9 ] CHAP XVIII. Of the Itch. H E Microfcope has difcovered, what without it could fcarce have been ima- gined, that the Diftemper we call the Itchy is owing to little Infedls under the Cuticuldy whofe continual Bitings caufe an ouzing of Serum from the Cutisy and produce thofe Puftules or watry Bladders whereby this Dif- eafe is known. This was found out by Dr. Bononio, ^ who obferving that itchy People frequently pull out of their fcabby Skin little Bladders of Water, with the Point of a Pin, and crack them on their Nails like Fleas, he determined to examine what thefe Bladders might really be. Wherefore pick¬ ing out with a fine Needle a little Puftule from a Place fcabbed over, and where there was a fevere Itching, he fqueezed a thin Matter from it, and perceived a very fmall white Globule fcarcely difcernable, which, applying to the Microfcope, he found to be a very minute Animal^ in Shape refembling a Tortoife, of a whitifh Colour, but darker on the Back than elfewhere, with fome long and thick Hairs ifluing from it, very nimble in its Motion, having fix Legs, a fharp Head, * Philofopht Pranf> Numb, 283, and