392 INTRODUCTION. 



the epiblast are (i) the skin; (2) the nervous system; (3) the 

 organs of special sense. 



Those from the mesoblast are (i) the general connective 

 tissue and skeleton ; (2) the vascular system and body cavity ; 

 (3) the muscular system ; (4) the urinogenital system. 



Those from the hypoblast are the alimentary tract and its 

 derivates; with which the stomodaeum and proctodaeum and 

 their respective derivates are also dealt with. 



BIBLIOGRAPHY. 



General works dealing with the development of the organs of tlie 



Chordata. 



(291) K. E. von Baer. Ueber Entwicklungsgeschichte d. Thiere. Konigsberg, 

 18281837. 



(292) F. M. Balfour. A Monograph on the development of Elasmobranch Fishes. 

 London, 1878. 



(293) Th. C. W. Bischoff. Entwicklungsgesck. d, Sdugethiere u. d. Menschen. 

 Leipzig, 1842. 



(294) C. Gegenbaur. Grundriss d. vergleichenden Anatomie. Leipzig, 1878. 

 Vide also English translation, Elements of Comp. Anatomy. London, 1878. 



(295) M. Foster and F. M. Balfour. The Elements of Embryology. Part I. 

 London, 1874. 



(296) Alex. Gotte. Entwicklungsgeschichte d. Unke. Leipzig, 1875. 



(297) W. His. Unterstich. iib. d. erste Anlage d. Wirbelthierleibes . Leipzig, 

 1868. 



(298) A. K 6 Hiker. Entwicklungsgeschichte d. Menschen u. der hb'heren Thiere. 

 Leipzig, 1879. 



(299) H. Rathke. Abhandlungen ii. Bildung und Entwicklungsgeschichte d. 

 Menschen u. d. Thiere. Leipzig, 1838. 



(300) H. Rathke. Entwicklungs. d. Natter. Konigsberg, 1839. 



(301) H. Rathke. Entwickhings. d. Wirbelthiere. Leipzig, 1861. 



(302) R. Remak. Untersttchimgen iib. d. Entwicklung d. WirbeltJiiere. Berlin, 

 18501855. 



(303) S. L. Schenk. Lehrbuch d. vergleich. Embryologie d. WirbeltJiiere. 

 Wien, 1874. 



