Vegetable poisons. ^^ 



bf blood will enfue in the head and face. 

 The left ventricle of the heart, and the 

 ofcillatofy motion of the arteries, will exert 

 a power to overcome the refiftance : but no 

 more blood can be received by the vena cava^ 

 already overcharged. It mud therefore either 

 be propelled into a feries of veffels, which in 

 a ftate of health refufe admiflion to red bloody 

 or the fmall arteries terminating in (i^hat 

 anatorfiifts call) red veins, will be ruptared> 

 and their contents confequently thro^vn out 

 into the cellular membrane under the fkin. 

 When a mufcle is in ^dion, it becomes pale^ 

 the fibres fwelling comprefs the interpofed 

 veins, and forcibly expel their blood, while 

 that of the arteries is deriied an entrances 

 and if a/I the mufcles in a violent epilepfy 

 are aifeded with convulfive foafms. the 

 greateft quantity of that blood v;hich ufed 

 to circulate through them, muft be deter- 

 mined to other* parts where there is lefs re- 

 fidance. The fluids, therefore^ will either be 

 pi-opelled into the lymphatic fyftem, crowded 

 into the veins, or extravafated in the cellular 

 membrane. The equipoife of the circulation 

 will be deftroyed ; and the left ventricle of 

 the heart, not receiving blood enough from 



F ^ the 



