317 



chez rhomme les glandes ar^olaires les plus volumineuses, qui con- 

 stituent de veritables reproductions en miniature de la mamelle, nais- 

 sent 6galement, et pour la meme raison, de bourgeons 6pidermiques 

 qui offrent tous les caracteres de bourgeon mammaire primitif. 



Un autre argument qui plaide encore en faveur de cette inter- 

 pretation reside dans cette constatation que, d'une faQon g^n^rale, le 

 bourgeon mammaire primitif des differents types 6tudi6s atteint un 

 developpement d'autant plus considerable qu'il donue naissance ä un 

 plus grand nombre de glandes lact^es 61ementaires. 



Ces considerations nous permettent, dans la question de la Phylo- 

 genese de la mamelle, de faire abstraction du bourgeon mammaire 

 primitif qui constituait la pierre angulaire de la th6orie de Gegen- 



BAUR. 



Aussi me crois-je autoris6 par les donn^es actuellement acquises 

 ä proposer I'abandon d^finitif de cette th6orie compliqu^e en faveur 

 de la conception nouvelle exposee ci-dessus qui, en plus de sa grande 

 simplicit6, a I'avantage de donner une interpretation logique des dis- 

 positions realis6es chez I'homme. 



Nachdruck verboten. 



Notes on the Skull of a Lion. 



By 0. Chabnock Bradley M. B., D. Sc. Royal Veterinary College, 



Edinburgh. 



With 2 Figures. 



The skull of a young lion (2 years and 5 months old) which re- 

 cently came into the possession of this institution presents some points 

 of interest in regard to the presence of supernumerary ossicles. In the 

 first place there is a variation from the normal in the left lachrymal 

 region. As will be seen from Fig. 1, a supernumerary suture is present 

 which appears to cut off a portion from the most anterior and upper 

 part of the lachrymal bone. The ossicle so isolated is roughly tri- 

 angular and occurs between the lachrymal, frontal, and maxillary bones 

 (Fig. 1 *). It carries the lachrymal tubercle, and has a part of its 

 surface included in the face and a part within the orbit. The facial 

 area is about equal in extent to the corresponding area of the opposite 

 lachrymal bone (Fig. 2), i. e. it is as extensive as the facial area of 

 the lachrymal in a perfectly normal skull; but not more so. The in- 

 dependent ossicle reaches as far down as the commencement of the 



