174 A MANUAL OF DENTAL ANATOMY. 



and if there be such a membrane, it must be a secondary 

 development upon the surface of the mass of cells which 

 primarily constitute the rudiment of the dentine papilla, and 

 in that case is not a part of the general basement membrane 

 of the oral mucous membrane ; or else it must have been 

 carried above as a sort of cul de sac in front of the inward 

 growing process of epithelium, to which in that case it would 

 belong rather than to the dentine germ. Neither of these 

 suppositions commend themselves as probable ; and a still 

 greater obstacle to the acceptance of a membrane in this 

 position is afforded by the structure of Marsupial teeth (see 

 fig. 23), in which the membrane would be everywhere per- 

 forated by the soft contents of the dentine and enamel 

 tubes. 



ROBIN ET MAGITOT. Journal de I'anatomie. 1866. 



LEGEOS ET MAGITOT. Follicule Dentaire. Journal de I'anatomie 



de M. Ch. Robin, 1873. 

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 Formation de 1'organe dentaire. 1881. 

 KLEIN. Atlas of Histology. 1880. 

 WALDEYEE. Strieker's Histology. 1870. 

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 KOLLIKEE. Gewebelehre. 

 TOMES, J. Quart. Jour. Micros. Science. 1853. 



Dental Surgery. 1859. 

 TOMES, CHAELES S. Develop, of Vascular Dentine. Philos. Trans. 



1878. 



Develop, of Teeth of Batrachia, Ophidia, Se- 

 lachia, and Teleostei. Phil. Trans. 1875 

 1876. 

 On Nasmyth's Membrane. Q. J. Microsc 



Science, 1872. 

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Anatomy of Vertebrates. 1870. 

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Observations on the Teeth. 1835. 



MAECUSEN. Bulletin de 1'Acad. de S. Petersburg. 1849. 

 GOODSIE. Edinburgh Med. and Surg. Journal. 1838. 

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of Dentistry, vol. i. 

 DUESY, EMIL. Entwickelungsgeschichte des Kopfes. 1869. 



