( '970 ) 
* 1 ' < .1 
number of Tunes be encereas^d^ the Calculation of which 
(tho much more intricate and operofe) would be equally 
attv'jinable by our Theorem. 
Ow far Anatomical Enquiries inform in the true 
£^ caufes of Difeafes, whijh have been afcribed to 
the want of Spirits in foiie,and Radical Moifture in Aged 
People, &c. may be in fome meafure feen by t .vo Ob 
fervations, among others, publifhr in the Tranfadtions 
No 280: The firft there mentioned, pag. 1195, h of a 
young Gentlewoman, in whom the Parietes^ or Mem- 
branes, that compofe the Trunks of the Arteries of the 
Arm near the /^x-ziy^, being very much thickened, fo that 
the Diameter of its Bore was lellened to more than a third 
part pf its natural fize^ infomuch that a part of the 
Trunk of the Artery cut Tranfverfel very much refem- 
bleda bit of the ftem of a Tobacco-pipe,/ its fides were 
fo thick, and its Bore confequently fo much leffened : 
The other was of the Trunks of the Arteries of the Leg, 
pagJ/^. t|jat were Obftrufted by PetrifiLtions or OiSfi- 
cations, in a perfon about the 67th year ^of his- Age. 
Since which I have met with feveral of the like Jnlfances 
in people of years, particularly in the Leg of an- old 
Gentleman, whofe Toes and Foot were Sphacelated, the 
Arteries of whdfe Leg I have ftill by me^ and have fent 
them herewith Injefted, as much as they cquld be, with 
Red Wax J in which the OfEfications dimi.aftiing their 
Channel^ in fome places, and totally obftruaing thero in 
others. 
