( 258 ) 



this latter (kin is eafily taken off when a tongue has been boiled, or 

 has lain fome time in hot water. 



This dii'pofition of the mufcles in the tongue is wonderful, and the 

 manner of their a6ling inconceivable by us, and dill more, with re- 

 gard to the human tongue, when we confider the variety of ways in 

 which the mufcles mud move and turn, to produce the effeil of 

 ipcaking, fmging, and M'hiflling, as before obferved. 



The exertions of the flefliy mufcles in the tongue, are cliiefly pro- 

 duced by their afTuming a ftraight figure, or by being inflefted or 

 bent, contrary to the manner of the flefliy mufcles in other parts of 

 the body, (as far as has eome to my knowledge) for their contrac- 

 tion and cxtenfion, is produced by means of the multitudes of excef- 

 fively minute wrinkles or crimped up particles, of which eacii mufcle 

 confifts. 



After this, I curforily examined the tongue of an hog, to fee, whe- 

 ther in it, the flefhy mufcles were intermixed or laid one acrofs an- 

 other, in the fame manner as I have defcribed in the tongu6 of an 

 ox : this I firft^ infpected in the thickeft part of the tongue, on the 

 upper fide, where it rifes in a ridge like a back ; and, I law not only, 

 that the mufcles were dilpofed in the fame manner as the ox's, but 

 that fome few of thofe which lay the lengthway of the tongue, in fome 

 ])laces eroded each other ; the tranfverfe inufcles were the fame as 

 in the ox's. Searching farther inward into tiie thickod part, I there 

 faw many flefhy mufcles lying parallel to each other, lengthways in 

 the tongue; but no others lying athwart or eroding them. I alfo 

 bedowed fome invedigation on the thinner parts of this tongue, with- 

 out finding any thing worthy of note. 



I have often employed my thoughts, on the formation of the flefliy 

 part in the hearts of animals ; not particularly to invedigate the courfe 

 of the flelhy mufcles, wl,ich I doubt not, has been iufficiently ex- 



