Some Account of the Blood . i i i 
the Blood, it may probably be cured by fame 
Diffohenti njedted.—Another Dog, in whofe 
Veins Oil of Vitriol was injected, complained 
a great while, foamed like Epileptics, breath¬ 
ed fhort, and died. His Blood was fixed 
and grumotis, refembling Soot.— Oil of Tar¬ 
tar was injected into a third Dog, who, af¬ 
ter much bemoaning, appeared fwelledj and 
died. His Blood was not in the leaft cur¬ 
dled, but thinner and more florid than com¬ 
mon.—This proves too great a Separation, 
aS well as a Coagulation, mortal. 
Mr. Boyle found, that by putting a little 
Aqua Fortis , Oil of Vitriol or Spirit of Salt p 
into warm BloM, it did not only lofe its 
pure Colour and become dirty, but in a 
Moment was coagulated; whereas urinous 
Spirits abounding in volatile Salts, fuch as 
Spirit of Sal Armoniac , mingled with it, did 
not curdle it, or debafe its Colour, but made 
it redder, kept it fluid, and preferved it a 
long while from Putrefaction. 
As the Microfcope has informed us of the 
Structure of the Blood\ which without its 
Help could never have been difcovered; and 
as its continual Affiftance is needful to exa¬ 
mine and diltinguifh minutely any Changes 
that may be wrought therein, either for the 
better or the worfe, by Accident or by Me¬ 
dicine 5 I hope this Difcourfe will not be 
judged too long or foreign to my Subjedt, 
I 3 fince 
