602 



The following are deciduous teeth, which were shed by the Nubian Giraffes in the Gardens 

 of the Zoological Society of London. The animals arrived there when between one and two 

 years of age, in May 1836 : 



Presented by the Zoological Society. 



3640. The left first or middle inferior incisor. 



This was shed in May 1838. 



3641. The left second incisor. 



This was shed in May 1838. In both incisors the fang has been absorbed to near the base 

 of the crown. 



3642. The left upper first milk-molar 



This was shed in October 1838. The crown has been worn down to the common dentinal 

 base, and the three roots, together with part of the base of the crown, have been removed by 

 absorption. 



3643. The left upper second milk-molar (</3). 



This was shed in November 1838. The four roots and part of the base of the crown have 

 been removed by absorption : the double crescents of enamel have not been worn down on the 

 grinding surface. 



3644. The right upper second milk-molar. 



This was shed in December 1838, after having undergone the same changes as in the fore- 

 going specimen. 



3645. The left upper third milk-molar (</4). 



This was shed in February 1840. The enamel crescents are partially obliterated on the 

 grinding surface of the crown, and much of its base, together with the fangs, have been 

 removed by absorption. 



3646. The left lower first milk-molar (?2). 



This was shed in October 1838. The crown has been worn down to the common dentinal 

 base, and the three roots, together with part of the base of the crown, have been removed by 

 absorption. 



