CORTEX PERUVIANUS. 
99 
cis veritatibus acutiflimo A folcniflimo, Dn. Hales, 
cum Deco&o corticis Chinac infHtutum, quo arte- 
rite non modo fenfibiliter contrafhc fuerunt, ve¬ 
rum etiam ad partem tonum auftum plane re¬ 
tinuerunt , quamvis omnem ad naturalem cas 
rurfus redigendi diametrum impenderit operam Dn. 
Hales, Phylicus hic celebris n). Objcftio quidem, 
G 2 heic 
») Hales Htemaftatic, or Statical Efiays, Vol. 3. p3g. 131. 
Exp. XVI. 
1) I made a ftrong Decoftion of Peruvian Bark, boiling a 
Pound of it in three Gallons ot Water to twoj when 
cold it was tiltrated feveral times diro’ a Flannel Bag. 
The Day following I prepared and tlit the C.uts of a 
young Spaniel Bitch as in the foregoing Experiment. 
2 ) I firfl poured into the Tube which wis fixed to the 
Aorta, four Pots of warro Water, containing cightecn 
cubic Inches cach, the laft of which palled of in f>2 
of time. Then I pourred in fucceflively fixteen I <>ts 
of equally warm Decodtion afBark, the firfl: ot whicli 
paffcd of in 72 and the following flower and 1 lowcr, 
in proportion as the VelTels grew more and more con- 
tradted by the lliptic Quality of the Decoftion, fo that 
the irt th Pot was 334 in Pailing. 
3) Then I poured in fucceflively eleven Pots of Water of 
the fame Heat with the Decoaion, the firfl: of whicli 
Pots was 198" in pailing, and tbe fucceding ones paf- 
fed 1'ooner and fooner in proportion as tliey wafhed of 
the Decoaion, and thercby relaxed the Coats ot tlie 
capillary VelTels, til the eighth Pot which pafled in 96 , 
after which the three following Pots of Water pafed 
of in the fame time , the Vetlels relaxmg no farther. 
Is was not to be exlpeitcd that the Water fhould to 
far relax thtfm as to pafs off in 62” ol time, which the 
abovementioned fourth Pot of Water did in diis hxpe- 
riment; for 1 always found that by a long Continuance 
to pour in the Water , the Veflcls did gradually lec 
lefs and lefs pafs; the Capillary Vetlels being compret- 
fed by the Water that inlinuated into ali Parts ot the 
Goats 
