158 Col, VELLEY' s Remarks on ibe Nature, Gc. 
work upon the fubje& of the Fuc*, which attributes the formation 
of thofe fine veffels to the laceration of the internal fubftance, as the 
fides become dilated into the air-bladders. An examination of thefe 
flender threads under the microfcope will probably induce the ob- 
-ferver to entertain a different opinion. If they originated from the 
caufe fuppofed, they would appear in a lacerated unconneéted ftate; 
and, being formed from the broken mafs, could never be fo curioufly 
anaftomatifed one with another: neither would the relaxed and 
. diffolved contents be drawn out into- tubular and jointed forms. 
~ Pefides, thefe capillary veffels generally dilate at the point of inofcu- 
lation, forming a kind of joint, in an uniform manner. ` It is very | 
S 
difficult to conceive that a texture. furpaffing in tenuity the fineft 
web, and at the fame time fo curioufly organized, fhould be pro- - 
. duced by a general revulfion of the expanding mafs. 
EIC ee ee E 
ao cel . 
