C ) 
attempts the caufe of the crooked and bending fhape 
of his Sceletan i and having rejefted fevera!, as a Hufc 
or Blow, the Rickets, Old Age, (gc. he concludes it 
muft proceed from the firfl: Foraiation of the F(etus in 
the Womb, from the Eggs nor having fufficient room, 
or being accidentally- prelt by fbme abcefs in the Womb 
or elfewhere, fo that the Carina of the Back-bone in- 
ftead of running ftrait was bent into a Circle, and kept 
the fame Figure when at full growth that thtfe Bones 
had taken when foft zvA tender. Hailing given this 
Reafon for the crooked ntfi of the Back-bone, he thence 
deduces the ficaatioo of the reft, as the drawing down 
of the Ribs and Sternum to the Ojfa Ilium : And from 
thefe Vertehrce and other Bones being thus preft upon 
each other, and fo rendred unmoved, he fliews the caufe 
of their being united into one Bone, the Pores of fuch 
tender Parts being eafily ftopr, fo that the Blood and 
other Humours could not pafs, and upon that Account 
the Cartilages of the Vtrtelrce becoming dry, united 
into one piece. By the fame Reafon the Ribs being preft 
againft th^ Verteir^ for fevcral Months, and without 
Motion in the W >mb, could receive and admit little or 
no Moifture between them, whence their Cartilages be- 
came hard and united,and in time Bony, as (everal other 
Bones of the Body do though they were but Griftles 
when in the Womb. 
He proceeds to make fbme Remarks upon his Sceleton, 
as that neceflanly the Body of this Perfon muft have 
been immoveable, that he could neither bend nor ftretch 
himfelf out, rife up nor iye down, nor turn upon his 
Side, having only the Head, Feet , and Hands move- 
able. 
The great difficulty feeming to be in the Refpiration/ 
how that could be performed whea the Ribs were thus 
immoveable : He endeavours to obviate this by obfer- 
viqg, firft, how little motion of the Breaft is neceflary 
to 
