10 



SCIENCE PRIMERS. 



[ill* 



Fig. I. — The Viscera of a Rabbit as seen upon simply opening thi 

 Cavities of the Thorax and Abdomen without any further Dissection. 



Ay cavity of the thorax, pleural cavity, of either side; B, diaphragm; 

 C, ventricles of the heart ; /?, auricles ; Ey pulmonary artery ; F^ aorta; 



