[ 5 °* 1 
i, The Azygos of the Subject B. 
k , Its Oefophagus . 
/, Its Stomach, 
w, Its Spleen. 
nn ? Part of the Lungs of each Subject. 
o f The Liver of the Subject A. 
Tab. II. F/g.6. 
This Plate reprefents the Heart, which is com- 
mon to the two Subjects, laid open tranfverfally. 
The anterior Part is lifted up, to fhew the Cavities 
and the Orifices of the Veflfels of its Bafe. The 
Figure is of about half the natural Size. 
This Heart had only two Cavities, < Z), E, as 
ufual ; but the right Cavity or Ventricle F) belonged 
to the Subject B ; and the left Ventricle E to the 
Subject A. 
Into each of the Cavities CD E there opened four 
Orifices j •viz, two arterial, which were thofe of 
the pulmonary Arteries, and of the Aortas , 
bf b } and two venal Orifices, or thofe of the right 
and left Auricles, for the Blood of the Cava, CfC t 
and of the pulmonary Veins, d , d. 
I give the Name of Aorta to the fuperior arte- 
rial Trunk b , of the Subject A , in Conformity 
with the ufual Appellations, and becaufe in com- 
mon Subjects this Trunk alone deferves that Name; 
although in this Cafe the pulmonary Artery a yifibly 
conftitutes the principal Part of the inferior Aorta, c. 
ff The inferior Cava. 
gg. The fuperior Cava. 
hf Part of the Branches of the pulmonary Artery. 
k , The Valve of the Orifice of the right Auricle 
in the Subject B. 
U u u 2 
III. 
