PHYSICAL AND LITERARY. 453 



through a tube fo fmall, fo much convo- 

 luted, and of fuch a length as the fingle 

 one, which, according to De Graaf, forms 

 the epidydimis : On thefe accounts, I 

 think, there is reafon to doubt this ftruc • 

 ture which he aflerts, till we have more 

 fatisfying proof of it than has hitherto 



been adduced. ^Such the following 



appears to be. If, in attempting to make 

 preparations like to thofe above defcri- 

 bed, an extravafation happens in any part 

 of the epidydimis, or if any of its convolu- 

 tions are tied, not a drop of the injecflion 

 can be pufhed farther towards the tefticle 

 than this extravafation or ligature : And, 

 if the epidydimis is cut acrofs, while 

 quick-lilver is poured into the tube fixed 

 in the vas deferens^ it fquirts out only at 

 one orifice in this cut part ; which is the 

 plained and moft convincing demonflra- 

 tion of the body of the epidydimis being 

 intirely compofed of a fingle tube convo- 

 luted in a moft wonderful manner. 



Though my injedion penetrated far 

 into the feminal pipes j yet ilili we are un- 



"acquainted 



