338 Of Vegetation. 



ture makes a wonderful provifion for this 

 at the glutinous ferrated joyning of the heads 

 to the flunks of the bones s which joyning 

 while it continues ductile the animal grows, 

 but when it oflifies then the animal can no 

 longer grow. As I was allured by the following 

 Experiment, vi&. I took a half grown Chick, 

 whofe leg-bone was then two inches long, 

 and with a fharp pointed Iron at half an inch 

 diftance I pierced two fmall holes through the 

 middle of the fcaly covering of the leg, and 

 shin-bone; two months after I killed the 

 Chick, and upon laying the bone bare, I 

 found on it obfeure remains of the two 

 marks I had made at the fame diftance of 

 half an inch: So that that part of the bone 

 had not at all diftended lengthwife, fince 

 the time that I marked it : Notwithstanding 

 the bone was in that time grown an inch 

 more in length, which growth was moftly 

 at the upper end of the bone, where a won- 

 derful provifion is made for its growth at the 

 joyning of its head to the fhank, called by 

 Anatomifts Symphyfis. 



And as the bones grow in length and fizej 

 To muft the membranous, the mufelar, the 



4.' - nervous^ 



