14 PROFESSOR THOMAS DWIGHT. 



Group II. 



Persistence of the right cardinal vein, the iliacs uniting at 



the usual place. 



Ahernethy. — Infant of 10 months. Heart transposed, but 

 viscera apparently not. Eight cardinal persisted. The portal 

 opened into it, at the level of the renals. 



Carpentier et Bertaux. — Observed on the body of a man aged 

 37. The right cardinal persisted, and presented a great 

 enlargement at the entrance of the renals. The hepatic veins 

 left the liver in one group of three and another of two, which 

 united into one vein going to the right auricle. 



Horner. — Male aged 5. Persistence of right cardinal. There 

 was a dilatation below the renals, which were themselves 

 dilated. The hepatic veins opened into the right auricle, the 

 risfht one alone, the middle and left one as a trunk. 



Horner gave the specimen to Wistar for his museum. It is 

 the case sometimes attributed to the latter. 



^ (?) Cnwcilhier. — Sex and age not given. It is perfectly 

 clear from the context that he once uses " left " for " right," 

 and the suspicion therefore arises that he may have done so 

 twice. There is thus great uncertainty as to where this case 

 belongs. He stated that the vessel was on the right of the 

 aorta, in its normal place. It, however, passed through the 

 diaphragm with the aorta. Later, it put itself behind the 

 aorta and the oesophagus (as it was already on the right, this 

 seems unlikely), and at the level of the 6th dorsal it ran 

 almost horizontally to the right, then upwards, and turned 

 over the left bronchus like an azygos. Later, he says there was 

 a large venous arch on the right, as there was a large arterial on 

 the left. It is clear that he meant to say that the vein turned 

 over the right bronchus. In spite of his statement that the 

 vein at the beginning was on the right of the aorta, in its 

 normal position, which I admit is hard to get round, I have 

 been strongly inclined to put the case in Group V., which 

 would account for the deviation of the vein behind the aorta, 

 previous to its sudden turn to the right. 



' A question mark implies that the classification of the case may be questioned. 



