S70 ESSAYS AND OBSERVATIONS 



Art. XVII. 



^he DiffeBion of the fame Monjier continued j 

 by Alexander Monro junior, M. D. and' 

 Profejfor oj Anatomy in the Univerfty of 

 Edinburgh *. 



MY father having fhewed me Mr. 

 Mowafs defcription of the mon- 

 ftrous foetus^ and a model of its form in wax, 

 I was curious to know how the parts of the 

 head and neck were formed. The prefer- 

 ycd foetus was obtained with difficulty, and 

 under a promife that no difledtion fhould be 

 made which might fpoil its form. The fub- 

 ]tOi was unfavourable, and the promife ren- 

 dered the dilTedion difficult, and impoffible 

 to be performed fo accurately as I wiflied. 



After drawing afunder the two parietal 

 bones of each fide INN (fee Mr. Mowafs 

 f^.) to take out the lint, &c. with which 

 the fkull was filled, and having cleaned a- 

 way the matter, membranes, &c. adhering 

 to the bones, I faw the cranium of a natu- 

 ral 



* May 1. 1755. 



