Volume 4

Academical lectures on the theory of physic. Being a genuine translation of his Institutes and explanatory comment. Collated and adjusted to each other, as they were dictated to his students at the University of Leyden ... / [Herman Boerhaave].

  • Boerhaave, Herman, 1668-1738
Date:
1742-1746
Catalogue details

Licence: Public Domain Mark

Credit: Academical lectures on the theory of physic. Being a genuine translation of his Institutes and explanatory comment. Collated and adjusted to each other, as they were dictated to his students at the University of Leyden ... / [Herman Boerhaave]. Source: Wellcome Collection.

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    8 The Organs of this Senfe are the fubcutaneous Nerves, which having depofited their Coverings or tough Skins, form with them one continued Integument, whofe Veffels are fo final], that they cannot be render’d vifible by any Inflammation, Injedlion, or even by the Micrcfcope ; but imme¬ diately under this Cuticle is fpread a fofter Sub- fiance, known by the Name of the reticular Bo¬ dy, which is unequally furfaced, having Furrows which intercept Spaces, in the Cavity whereof are lodged the Papilla : nor do the Furrows belong to the Cuticle, but to the reticular Body. §.482. But with refpedt to thefe Papillae, it is very remarkable and furprifing, that tho* they are difpofed in a perpendicular Pofltion with refpedl to the Skin in the other Parts of the Body, yet at the Ends of the Fingers and Toes they lie extended1 according to the Length of the Joints; from whence they are continu¬ ed and folded up in the Cuticle 2, as in Sheaths, in which becoming dry, they are condenfed into the Nails $ and by means of the confoli- dated or condenfed cutaneous Veffels, ferve to defend 3 the Papillae, and are fitted \ to prevent them from growing callous. 1 We obferve firfl Striae, which on the outfide and lateral Parts of the Ends of the Finges, run parallel *, but betwixt thefe Striae are difpofed the Papillae, not perpendicularly erefled, but difpofed one over the other in Strata. When thefe Strim touch the Nail, there the exterior Papillae, with the cutaneous Veffels and Cuticle itfelf, are extend¬ ed into right Lines, and hardened into the Sub- B 3 fiance