Human Frame. 25? 



pass freely through ail bodies, when those 

 that produce smell will not pass ihe thin 

 membranes of a bladder, and many of 

 them scarce ordinary white paper. 



There is a great variety of smelts, 

 though we have but a few names for 

 them; sweet, stinking, sour, rank, and 

 musty, are almost all the denominations 

 we have for odours j though the smell of 

 a violet, and of musk, both called sweet > 

 are as distinct as any two smells whatso- 

 ever. 



Of Taste. Taste is the next sense to 

 be considered* The organ of -Taste is 

 the Tongue. 



The tongue is covered with two mem- 

 branes ; the external is thick and rugged, 

 especially in beasts ; the internal me<m- 

 brane is thin and soft ; upon it appear se- 

 ver d\ papillae or small risings, like the tops 

 of the small horns of snails ; these papil- 

 lae are made of the extremities of the 

 nerves of the tongue, and piercing the ex- 

 ternal membrane, are constantly affected 

 by those qualities in bodies, which have 

 their tastes excited in the mind by means 

 of these nervous papillae ; and thus are 

 these papillae the immediate organ of 

 tasting. Y 



