Some Account of the Blood . 109 
Changes are produced in Fluids furprizing- 
ly and fuddenly, as a very few chemical Ex¬ 
periments will demonftrate : the Bite of Ve¬ 
nomous Creatures, and Inoculating for the 
Small-Box, fhew likewife how minute a Pro¬ 
portion of poifonous Matter will contami¬ 
nate the whole Mafs of human Bloody which 
can no otherwife be effected but by altering 
the Solidity, Figure, Size, or Motion of its 
component Parts or Globules. And it is pro¬ 
bable, that in many Cafes it may be chang¬ 
ed from a morbid to a healthy State, by 
Ways not lefs eafy, could we be fo happy 
as to find them out: for we cannot reason¬ 
ably fuppofe, that the beneficent Author of 
Nature has given more certain and ready 
Means of doing Mifchief than of doing Good. 
Many Diftempers might perhaps be cured 
by an immediate Admiffion of fome Medi¬ 
cine into the Veins, which elude the Power 
of all that can be taken by the Mouth. For 
the Stomach, by its Heat, its Action, and a 
Mixture of its juices, works fuch an Altera¬ 
tion in Things before they can be adrhitted 
into the Blood, that they are unable to pro¬ 
duce the fame Effects as if they were re¬ 
ceived into it hmply and unchanged. 
Some Trials that have been made already 
may ferve in a great Meafure towards con¬ 
firming the above Suppofition. Dr. Fabri- 
cius inje&ed with a S vphon into the Median 
Vein of a Soldier’s Right Arm, in the Hof- 
I 2 pita! 
