An Essay on Contagious Diseases / more particularly on the small-pox, measles, putrid, malignant, and pestilential fevers

by Clifton Wintringham

Prop. I.

The Magnitude of the Particles of the Blood being increased, Obstructions will be formed in the Ramifications of the smaller Vessels, which will happen sooner or later, in Proportion to the increased Magnitude of the Particles, and the smallness of the Vessels.

Demonstration.

Let the Canal A be an Artery of a middle Size, sending out the Branches C, D, E, F, G, H; Let the Dotts represent the increased Moleculæ of the Blood, it is evident that these must be stopt some where or other in the Ramifications of the Vessels C, D, E, F, G, H, whenever the Diameters of the Moleculæ exceed those of the containing Vessels.