( J48 ) 
fome againfl; the fides of their parts and forcing them out 
laterally $ others into the Interfaces between their extre- 
mities, (thereby elongating every Series of them j) where 
they are apponed, and fixed, and thus the parts increafe 
both in their thicknefs, and longitude. But after the Par- 
tides are united at their extremities, and no longer ca- 
pable of making room to lodge the nutritious parts out 
of the way of the Spirits direft motion 5 then the Spirits 
come to ad: upon the nutritious Matter by that motion 
and to drive it fo thorough the nervous Channels that 
it has not the liberty of (topping, and adhering, and 
fo the Accretion of the Animal Ceafes. 
Nutrition he makes to be no reparation of the lofs of 
the fubftance of the Solid parts ordinarily, but only a 
continuaHucceffion and fupply of Spirits, and of all thofe 
fluid parts, which fill the containing parts and preferve 
them diftended. 
The Rickets being a Diftemper in which the Accretion 
of the Bones is concerned, he does fuppofethat the in- 
curvation of the Bones is neither from a preternatural 
fliortnefs of the Mufcles, nor an unequal fupply of Spi- 
rits, and nourifliment of thefeveral parts of the Bones : 
but from a different temper in the feveral parts of them" 
that on one fide they continue in their Affinity to the Na- 
ture of the Cartilage, whilft on the other they approach 
nearer to the temper of a perfect Bone 3 fo that the Par- 
ticles are in one place more apt to recede and to give 
way for the acceffion of new Nourifhment : and confe- 
quently there is a greater increafe than in the other. From 
which unequal Accretion the Bone will be i::curvated 
and the Concave of their Arch will be on that fide which 
is leaft augmented, and the Convex on the other. 
For Venereal Nodes in the Bones > he fuppofes that the 
venenofe Matter does eat fome little holes in the Lami- 
na, and fo makes room for the reception of fome of the 
nutritious Matter, on one fide of the Spirits motion : and 
then 
