1 84. Mifcellanea Curiofa. 



preparatory to this, and to which he frequently 

 refers in other Places of this Work. But what 

 confirms my fufprcion, that this part was intend- 

 ed for a farther Revife by the Author, is, that 

 he has left the Progrefs of the Blood through the 

 Veins, and the Diaftele of the Heart, abfolutely 

 untouched, tho 5 they are Difficulties of a much 

 greater magnitude than this, which he has at- 

 tempted to account fo flightly for : For, in thefe 

 he is excluded the benefit of Percujfion, and has 

 yet a greater refiftance to overcome without it. 

 OmifTions of this kind are fo unufoal with this 

 Author, where-ever he knows himfelf to go up- 

 on fure grounds, that it is to me an Argu- 

 ment, that he doubted the fufficience of his Pern 

 cuffion, and referv'd thefe important Phenomena 

 for farther Confideration, without plunging him* 

 (elf into fiich an Abfurdity, as to afcribe to Per* 

 cujfion any fuch Energy as to be able (fo broken 

 as it returns to the Heart) by its re action to 

 force that Power, from whence only it was at 

 firft deriv'd. 



Dr. Lower, and Mr. Ccwper, deliver their Opi- 

 nions of the Caufe of the Dilatation of the Heart 

 fb very (hort, and without any Arguments to 

 fupport them, that by expofing them naked, 

 they feem rather to difcourie of it tranfiently, 

 as Men oblig'd by the Nature of their Sub- 

 jects to fay (omething of it, than (olicitous to 

 give any full or fatisfa&ory Account ; and there- 

 fore I (hall proceed no farther upon them 

 here. 



But though the Hypothefis or BorelJus may, in 

 this Cafe, be found precarious or inefficient 



(a Misfor- 



