txvi GENEEAL INDEX. 



Page Sec. 



Sense of touch -. 710 . 2008 



Tegumentary skeleton 710 . 2009 



Kidneys and urinary excretion 711 . 2010 



Alantoicsac 711 . 2012 



Generative system in the Eeptilia 711 . 2013 



Male sexual organs of the Frog 712 . 2014 



Sexual apparatus of the female Frog 712 . 2017 



Male organs of the Newt 713 . 2018 



Female generative system of the Newt, Proteus, and Siren . . . 714 . 2019 

 Male organs of generation in the Ophidian, Chelonian, and Sau- 

 rian Eeptiles 714 . 2020 



Structure of in tromittent apparatus in the Chelonians . . . . 714 . 2021 



Saurians 715 . 2024 



Female generative system in the higher Eeptilia 715 . 2025 



Formation of the egg and development of the embryo .... 715 . 2026 



CHAPTER XXVIII. 

 AVES BIEDS. 



