of Human Monstrosity. 229 



Circumference of common head 12 inches. 



neck 8 



thorax n| 



Diameter from occiput to occipal 5.0 



eye to eye 4.0... 



Such being the structure of this curious production, we are 

 naturally led to admire those deviations from the usual disposition 

 of essential parts which seem to fit it for an independent existence 

 after birth. The respiratory, the circulating, the nutrient, the se- 

 cretory apparatus are perfect, and that it did not live, is to be 

 attributed to accidental causes, which are unknown. Here also 

 we have an instance of one creature, admirably compacted from 

 the parts of two. For the union of the instruments of intelligence, 

 viz. the cerebral lobes, and the nerves which supply the organs 

 of sense, constitute it one individual. The spinal chords also are 

 intimately united, since the corresponding crura cerebri to which 

 they pass, form one and the same mass. The curious disposition 

 of the lungs, and the connection of the arterial and venous system 

 of either body with different hearts, are evidently causes which 

 tend to the same effect. For without this, or something equivalent, 

 the circulation which is now one for the whole mass, would have 

 been two, a distinct and independent circulation for each body. 



There is a description of a human monster, in many respects 

 resembling the present, given by Brugnoni in the sixth Volume of 

 the Memoirs of the Academy of Turin : and another by Duvernoy 

 in the third Volume of the Commentaries of the Petersburgh 

 Academy. They had, like ours, the head, neck, and upper part 

 of the trunk, semi-double ; four arms and four legs. They were 

 both formed of the union of two females. In the Turin paper no 

 description is given of the circulation, except that there were two 



