518 ON DISEASES OF THE MOUTH. 



profefs to inflruft in any art, (hould be doubly 

 careful how they receive the errors of others, 

 and propagate them bhndiy, from a want of 

 experiment and obfervation." In the truth of 

 that remark, I join moft cordially, with the ad- 

 dition, that it behoves pretenders to have an ef- 

 pecial care, lead by their own logic they con- 

 vi61 themfelves. Is there any proof, for exam- 

 ple, of Mr. Blaine's experience in the difeaies of 

 horfes, and his confequent ability to inJiruEi, in 

 his affertion, that jaundice, or yellows, is an un- 

 frequent, and that diabetes fsjiotan unfrequent 

 difeafcjin the horfe ? — a propofition which every 

 farrier's apprentice, or tea-kettle groom, knows 

 muft be read backwards. To return to paps 

 and barbs — as far as my own experience or in- 

 formation goes, barbs have ever been fuppofed 

 to denote, primarily, a preternatural and incon- 

 venient enlargement of the paps, or heads of the 

 glands or kernels, under the tongue of the horfe 

 or ox ; generally, any excefs in the folds of the 

 fldn of the nether jaw. Thefeexcrefcences are 

 fometimes the fubje61 of inflammation, at others, 

 there is little or no inflammation, but, in either 

 cafe, they impede mallication, and occafion the 

 animal to bite and wound his tongue ; when 

 excifion becomes neceflary, and I have never, 

 in a fingle inftance, either known, heard, or read 

 of the fmalleft danger or inconvenience refulting 

 from fuch excifion. Mr. Blaine allows, that 



the 



