Royal Society. 359 
It is a common opinion that ftitching divided tendons is hazardous, 
if not impracticable J but an inftance in the tendon of a horie's 
leg convinced Mr. Coivper that tendons as well as bones and other 
parts would unite, tho' they were quite divided, in cale the 
neighbouring parts remained entire, and that their two extre- 
mities could be artificially applied to each other, without com- 
prefling all or the greateft part of their blood-veflels : This di- 
Kribution of the blood- veffels is expreffed in the annexed Fig. 14, 
Plate X. where one trunk A A, with its branches ^^ to the 
fibril of the tendon BB is reprclented, whether it was a vein or 
an artery he could not dilcover in that fubject 5 but m all proba- 
bility, both thole veflels have the like dilpofition in fuch large 
tendons. Mr. Coivper is inclmed to think that the like diftribu- 
tion of blood-veflels is not to be found in the tendon which was 
divided in this prefent inftance 3 but that its blood-vefTels pals 
into it and return again at its internal fide, next the mufcles of 
the toes and Tarfus, which ought to be taken notice of by the 
operator in the like cafe 5 as alio that he ihould not free it of its 
fat and membranes contiguous to thofe mufcles, left its commu- 
nication with the blood-veflels be deftroyed. 
7'he Operation of a Blifter, in the Cure of a Fever 3 hy 
'Dr. William Cockburn. Phil. Tranf. N° 252. p. i5i. 
IN order to give a reaibnable account how a bliftering plaifter, 
the great ingredient whereof is Cantharides may cure a fever 
and its moft terrible fymptom a iDelirium^ and that in a few 
hours 5 the Doftor firft employed microlcopes to view the fly, and 
its powder, if he could dilcover any fharp inftrument in thefe 
animals but could meet with no luch thing in the fly, and the 
powder appeared to view like a dark cloud 3 he then put half a 
pound of Cantharides into a retort, and with a fmall land-heat 
and in a very fjiort time, there came over vaft quantities of bodies 
fo very fmall, that he was not able to diicern their Ihape; and 
tho' he proceeded in the ufual way on fuch like occafions, the 
whole operation was performed very loon 3 that very little fait 
ftuck to the neck of the reti^rt, and the volatile fait ihot into 
beautiful crvftals in the receiver 3 and oF eight ounces o{ Cant ha- 
ridtS, theie were only two ounces and five drachms left as a Caput 
Mortmim in :he retort- when the liquor came to be purified, the 
Irna.'left heat brought over fuddenjy oil, lalt, and Ipirit, which 
couid not be Separated, bat by repeated operations with brick- 
duft, he mixed the Ipirit with lalt of wormwood, Ipirit oF harts- 
horn and Sal ArmoniaCy but it did not ferment 5 then he wrought 
