[ ’8 ] 
flatulent Matter muft be convey’d, fnouid lie fo 
loofe and unelaftic; it being evident from all 
Experience, that if fuch an elaftic flatulent Vapour 
was to fly thro’ the whole Length of the Nerves, 
with an Energy fufficient to give a Man a Power of 
lifting up great Weights, the Nerves muft be ftretched 
out in Proportion, and confequently would be very 
tenfe and elaftic. 
LXIII. 
Thofe who fuppofe the Inflation of the Mufcles 
to arife from a fermentative Motion in the Fluids, 
ought to prove, by a proper Number of Experi- 
ments, that there are Juices exifting in the Body 
capable of fuch fudden and violent Rarefactions or 
Explofions, upon mixing with each other; and if 
this poflibly could be done, the Diminution of the 
Bulk of the Mufcles in AClion, would overturn all 
their Scheme. 
LXIV. 
Hence it is evident that the veftcutar Hypothecs 
ought to be intirely rejected, as being repugnant to 
the Laws of Matter , and to the ‘Phenomena of the 
Mufcles. 
LXV. 
By undoubted Experiments we are convinced, 
that the Intumefcence of a Mufcle, when it aCts, 
atifes merely from a Change made in its Figure ; 
that is, as it fhortens in Length the Belly grows 
thicker, and yet the Bulk in general is diminilhed. 
Let 
