(5 OF MULES. 



til re of the upper jaw, taken from the corner of 

 the mouth, was near half an inch longer in the 

 mule than in the (lieep. The head of the mule 

 was not covered with wool, but with long, bufhy 

 hair. The tail was two inches fnorter than that 

 of the fheep. 



In the beginning of the year 1752, I obtained, 

 from the union of a he-goat with ewes, eight o- 

 ther mules, fix of which tvere males, and two 

 females. Two of them died before 1 could ex- 

 amine them ; but they feemed to referable thofe 

 who furvived. Two of them, a male and a fe- 

 male, had four teats, two on each fide, like thofe 

 of the goats. In general, thefe mules had long 

 hair on the belly, and particularly about the pe- 

 nis, as in the he-goat, and alfo on the feet, and 

 particularly thofe behind. Mofl; of them had 

 the chanfrin lefs arched than is couimon to 

 lambs, the dillance between the hoofs larger, 

 and the tail fhorter. 



Under the article Dog, I related fome experi- 

 ments made with a view to procure an intermix- 

 ture between a dog and a wolf, where all the 

 precautions employed for that purpofe were a- 

 bortive *. The conclufion drawn from thefe ex- 

 periments was in the following words : ' I pre- 

 ' tend not abfolutely to aflirm, that the wolf, 

 * in no age or country, never intermixed with 

 ' dogs. The contrary is afferted pofitively by 

 ' the ancients. Ariftotle remarks, that, though 



' animalj 

 t See vol. IV. p. 24. 



