54, Memoir upon living and fossil Elephants. 



the pedicles f,u,VjX^ which serve for the formation of the 

 roots, are already much lengthened. 



Fiii. 2. is the germ of the back tooth, extracted with its 

 capsule from the cavity of the back jaw. 



a, b, remains of the periosteum of the alveolus. 



Cyd, anterior part of the external membrane of the capsule. 



€,f, portion of this external membrane, detached and 

 folded down in order to show the internal membrane g,h, i. 



k,k,k,k, &c. transversal productions of this internal mem- 

 brane, which separate the laminae of the tooth and ihe ge- 

 latinous walls upon which these laminae are formed. 



1 have removed the portions of the membrane which 

 united these productions, in order to exhibit the laminae of 

 the tooth which they covered. 



/, /, /, the body of the pulpy nucleus of the tooth. 



m,m,m,m, &c. its productions, or the small transverse 

 •walls which it sends out among the productions of the cap- 

 sule, and upon which are formed the laminse of the tooth. 



n,i},n,v, &c. laminie, said to be osseous, transuded by 

 these small walls which envelop them, and the whole of 

 ■which forms the tooth. The posterior ones are much 

 shorter, and do not envelop so completely their small walls, 

 because the transudation begins later behind. 



0, 0, 0,0, &c. the enamel deposited upon these larainse by 

 the hifernal face of the capsule. There is much less upoa 

 the posterior laminae for the same reason. 



In the part d^ g, h, the cortical has already covered the 

 enamel and soldered the laminae together. 



p, p, p, the interruptions of continuity which separate the 

 commencements of the pedicles of the roots. 



Fig. 3. is the middle part of this same germ, seen by its 

 posterior face. 



a, a, its base, seen a good deal shortened. 



1, one of the last small transverse walls. 



c, lamina said to be osseous, which as yet only envelops 

 its notches. 



dj a notch, the envelop of which is not as yet joined to 

 the others, 



c, e, e, e. 



