DEVELOPMENT OF THE ENAMEL 



151 



appear to be connected with the horns of the crescent, 

 which are directed towards the forming enamel (see fig. 85). 



Granules and clear oval bodies are also seen within the Globules 



i mi. in ame *- 



cell when the deposition of enamel has commenced. Inese blasts. 

 oval bodies are variable in size and shape, and do not react 





e 



FIG. 85. Enamel organ of Macropus (cut without decalcification ). 

 s. Stellate reticulum; i. stratum intermedium ; a. ameloblasts; t. Tomes' 

 process ; e. forming enamel. (The interlacing of the fibres of the Tomes' 

 processes and the continuity of these fibres with the cytoplasmic threads 

 in the ameloblasts are seen. ) x 800. 



to polarized light. They would appear to be globules of 

 material of a colloidal nature secreted by the cell, and in all 

 probability the material which is elaborated by the cell and 

 containing the calcifying salts. 



These globular bodies in the ameloblasts have been 



