GENEKAL INDEX. 



Page 



Male intromittent organ of Geese, Ducks, &c. 740 



Female generative system 740 



Atrophy of ovarium on one side of the body 740 



Structure of fertile ovary 740 



Oviduct . :-i .... 741 



Formation of the egg 741 



Organization of the calyces or ovarian ovisacs 741 



Structure of the ovulum 741 



Phenomena attending conception 742 



Addition of the " albumen " and " chalazae " 742 



Formation of the " membrana putaminis " and egg-shell . . . 742 



Anatomy of the egg prior to incubation 743 



Development of embryo in the egg 743 



Formation of vascular system 744 



Branchial arches 746 



Branchial fissures 746 



Changes in the branchial apparatus 746 



Establishment of pulmonary circulation 748 



Formation of " ductus ar teriosi " 748 



Separation of pulmonic from systemic circulation 748 



Omphalo-mesenteric system of vessels 749 



Ductus vitello-intestinalis 750 



Corpora Wolfiana 750 



Allantoic system 751 



Urachus 751 



Comparative view of the ova of Vertebrata 751 



CHAPTER XXIX. 

 MAMMALIA. 



MAMMALIA General characters of the class 753 



Osteology of the mammiferous skeleton 754 



MONOTREMATA 760 



Skeleton of Ornithor hy nchus paradoxus 760 



MARSUFIALIA 761 



Skeleton of Hypsiprymnus 762 



PLACENTAL MAMMALIA 762 



CETACEA 763 



Skeleton of Balcena mysticetus 763 



PACHYDERMATA 764 



Skeleton of Hippopotamus 765 



SOLIDUNGULA Or SOLIPEDS 765 



Skeleton of the Horse 766 



RUMINANTIA 766 



Skeleton of the Stag 767 



EDENTATA 768 



Skeleton of the Armadillo 768 



Sloth 769 



RODENTIA 769 



Skeletons of EODENTIA 770 



Jerboa (Dipus} 770 



CARNIVOROUS MAMMALIA ... * 771 



AMPHIBIA 772 



Skeleton of the Seal 772 



Walrus ( Trichechus rosmarus) 772 



DlGITIGRADA 773 



Skeleton of the Weasel 773 



"Mechanism of the claws of the Felidce 773 



The Dog 773 



PLANTIGRADE CARNIVORA 774 



INSECTIVORA 774 



