142 



Also auch für die Gl. retrolingualis des Hundes hat sich ergeben, 

 daß die Halbmoudzellen mit Sekret nicht gefüllte Schleimzellen sind. 

 Diese Thatsache erklärt auch den Umstand, daß die verschiedenen 

 Autoren, welche die normale Gl. retrolingualis des Hundes beschrieben 

 haben, über die quantitative Verteilung von Schleimzellen und „se- 

 rösen" Zellen in ihr nicht übereinstimmen. Es überwiegt eben die 

 eine oder andere Zellart je nach dem obwaltenden Sekretionszustand 

 der Drüse. 



Auf die einschlägige Litteratur behalte ich mir vor, in meiner 

 ausführlichen Abhandlung näher einzugehen. 



Nachdruck verboten. 



A Case of Left Anterior (Superior) Vena Cava in the Dog. 



By 0. Charnock Bradley, M. B. 

 Professor of Anatomy, Royal Veterinary College, Edinburgh. 



With 1 Figure. 



The literature contains many records of cases in man in which 

 the left duct of Cuvier, maintaining its embryonic connections, joins 

 the left jugular and subclavian veins to the coronary sinus. In other 

 mammals, however, either the occurrence of this anomaly is very rare, 

 or it has escaped the observation of anatomists. For a prolonged and 

 careful hunt through all available sources has not resulted in even one 

 case being run to earth. It is possible, of course, that I have been 

 unfortunate in my search, and that records may exist that I have not 

 been lucky enough to stumble across; but in any case my failure may 

 be taken to indicate the rarity of this particular malformation in those 

 mammals (other than man) which are most frequently dissected. Such 

 at least is the conclusion at which I have arrived. As a consequence 

 it has been decided to briefly describe a left anterior (superior) vena 

 cava which was recently discovered in the course of a dissection of 

 the thorax of a dog. 



The animal was an aged male Retriever dog which had been de- 

 stroyed because of a skin disease against which remedies had been 

 of only little avail. It was sought to harden the various organs in 

 situ, and for this purpose a solution of formalin was injected into 

 the carotid artery. 



After opening the chest from the left side, and removing the left 

 lung, one's attention was attracted to a large venous trunk which crossed 



