L 47 J 
and their Sides become uniform with the Parts th 
were, before, more {lender. 
VI. 
And as thefe Cells communicate one with another^ 
it may be reafonable to fuppofe, that there is no Ne- 
ceffity for any more than one nervous Tube to each 
mufcular Fibre ; fo that the Number of nervous Fibres 
in that Bundle that goes to a Mufcle need only to be 
equal to the Number of mufcular Fibres that compofe it. 
From this Structure it is cafy to conceive, how the 
mufcular Cells are capable of being fhorten’d, by 
their being inflated * and increafed in Diameter: 
And it is to be further obferved, that the Bellies or 
Cells of neighbouring Fibres do not lie regularly by the 
Sides of each other, but promifcuoufly ,* that is, the 
Cells of fome lie clofe to the (lender Parts of others, 
and fometimes two (lender Parts lie "together, and 
fometimes two Cells. 
vir. 
Of a nervous Fibre \ 
The fmalleft nervous Fibre I was able to feparate 
feems to be a Tube 5 therefore a Nerve may be de- 
fin’d a Bundle of uniform Tubes, whofe Sides are 
parallel 
* The Authors, mention’d in my firft Ledture, make ufe of the 
Word Inflatio , and its Verb, to fignify a Repletion of the Fibres, 
or their fuppofed Bladders , Rhombus's, &cc. with Blood and Spirits, 
fermented together. On the contrary, I apply it to fignify a Blow- 
ing up of the mufcular Cells with an elaftic Aura only, denying that 
any Blood or Spirits can get into them. See Sedt. X. and XVIII. 
following. 
