780 BIBLIOGRAPHY. 



mation of the epithelial layers of the two organs, preparatory to their 

 absorption, is partly effected by the tunneling of the mesoblastic tissue 

 between them by numerous spaces. 



The hypoblastic section of the cloaca of birds, which receives the open- 

 ings of the urinogenital ducts, is permanently marked off by a fold from 

 the epiblastic section or true proctoda^um, with which the bursa Fabricii 

 communicates. 



BIBLIOGRAPHY. 

 A limentary Canal and its appendages. 



(561) B. Afanassiew. " Ueber Bau u. Entwicklung d. Thymus d. Saugeth." 

 Archiv f. mikr. Anat. Bd. xiv. 1877. 



(562) Fr. Boll. Das Princip d. Wachsthitms. Berlin, 1876. 



(563) E. Gasser. "Die Entstehung d. Cloakenoffnung bei Huhnerembryonen." 

 Archiv f. Anat. u. Physiol,, Anal. Abth. 1880. 



(564) A. Gotte. Beit rage zur Entwicklungsgeschichle d. Darmkanals iin 

 Hiihnchen. 1867. 



(565) W. Muller. " Ueber die Entvvickelung dcr Schilddriise." Jenaische 

 Zeitschrift, Vol. vi. 1871. 



(566) W. Muller. "Die Hypobranchialrinne d. Tunicaten." Jenaische Zeit- 

 schrift, Vol. vn. 1872. 



(567) S. L. Schenk. "Die Bauchspeicheldriise d. Embryo." Analomisch- 

 physiologischc Untersuchungen. 1872. 



(568) E. Selenka. " Beitrag zur Entwicklungsgeschichte d. Luftsacke d. 

 Huhns." Zeit.f. wiss. Zool. 1866. 



(569) L. Stieda. Untersuch. lib. d. Entwick. d. Glandula Thyinus, Glandiila 

 thyroidea, u. Glandula car otica. Leipzig, 1881. 



(570) C. Fr. Wolff. " De formatione intestinorum." Nov. Comment. Akad. 

 Pdrop. 1766. 



(571) II. Wolfler. Ud>. d. Entunck. u. d. Bau d. Schilddnise. Berlin, 1880. 

 Vide also Kolliker (298), Gotte (296), His (232 and 297), Foster and Balfour (295), 



Balfour (292), Remak (302), Schenk (303), etc. 



Teeth. 



(572) T. II. Huxley. "On the enamel and dentine of teeth." Quart. J. of 

 Micros. Science, Vol. in. 1855. 



(573) R. Owen. Odontography. London, 1840 1845. 



(574) Ch. S. Tomes. Manual of dental anatomy, human and comparative. 

 London, 1876. 



(575) Ch. S. Tomes. "On the development of teeth." Quart. 7. of Micros. 

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(576) W. Waldeyer. " Structure and development of teeth." Strieker's His- 

 tology. 1870. 



Vide also Kolliker (298), Gegenbaur (294), Hertwig (306), etc. 



