16 PEOFESSOR THOMAS DWIGHT. 



the vein arched forward and downward over the aorta and the 

 root of the left lung, to join the superior cava. The latter, 

 formed by the union of the innominate veins, was situated on 

 the left. This vein, after receiving the left cardinal, ran within 

 the pericardium across the top of the heart and the back of the 

 left auricle, to enter the right auricle close by the septum. 

 Three hepatic veins uniting into one before entering the right 

 auricle : the right ovarian vein ran to the renal ; the left 

 to the left cardinal. It is said, in the abstract, taken from 

 Schmidfs Jahrhucher, that the azygos (on the right) probably 

 emptied into the hepatic veins, but I am quite at a loss for 

 the grounds of this supposition. There is a strong suggestion 

 of the persistence of the left duct of Cuvier, but it is stated 

 that the right auricle received also the coronary vein. 



Group IVa. 

 The same transposed in situs inversus. 



Moser. — The vessel is said to have run in the place of the 

 non-transposed right cardinal vein. 



Group V. 



Persistence of the lower part of the left and the upper part 

 of the right posterior cardinal, with the iliacs uniting at 

 about the usual place. 



The present case belongs in this group. 



(?) Jejfray. — This case, said to belong to Jeff ray of Glasgow, 

 is casually described by Otto. The union of the iliac veins is 

 not high, but just how low is not stated. (Quain says " at the 

 usual level," but his authority is not clear.) The arrangement 

 of the veins is said to be much like this, but there was a large 

 hemiazygos opening into the left innominate. The accounts 

 of this are unsatisfactory. If this hemiazygos be the chief 

 vein, the case belongs to another group. 



Hochstetter. — Case 11. is the same in the main ; but there 

 was a great dilatation in the left cardinal at about the entrance 

 of the left renal, and the right renal passed by itself through 

 the diaphragm before joining it. 



