286 Facts relative to the Diseases common to 

 4. Difficult Labour, &c*. 



I greatly mistake if many species of animals do not 

 suffer considerably from the process of Dentition. 

 That this is the case in some animals, is acknowledged 

 by medical writers ; and is well known to those who 

 have the management of domestic quadrupeds. To this 

 I might, with some propriety, add, what has been said 

 by certain writers, that dentition, as a disease, is much 

 more common among some nations than among others : 

 and that it more frequently occurs among civilized than 

 among savage nations. Thus, among the Indians of 

 North- America (those, at least, with whom we are best 

 acquainted), cases of difficult dentition are by no means 

 common. This I would, in some measure, ascribe to 

 the structure of the cutting teeth of the Indians, which, 

 in general, are more sharp-pointed than those of the 

 Europo- Americans. 



As to the diseases of the Teeth in animals, they will 

 claim some of my attention in a second memoir. At 

 present, I shall content myself with observing, that 

 many of the mammalia seem, in common with man, to 

 suffer exquisite pain from tooth-ache : and Caries of the 

 teeth is a frequent occurrence in the same class of ani- 

 mals. 



Mola is a common disease in animals. Its occur- 

 rence in the Hog, is known to every butcher. I even 



* " Taceo eos morbos qui elsi homini non proprii, tamen longe 

 quam aliis animaniibus frequentiores sunt, ut dentitio gravis, mola, 

 abortus, partus difficilis, etc." De Generis Ilumani, See. P. 62. 



