CHARLES F. W. MCCLUKE AND GEORGE S. HUNTINGTON 



Types the atypical or variant conditions of the vena cava, 

 actual as well as potential, in the adult cat. Furthermore, not 

 only have we interpreted all the atypical forms of the cava 

 already known, but also we have predicted the existence of 

 others, some of which, since the publication of our first 

 papers, actually have been reported by other investigators 

 as found in the adult cat and in man. 



In the following pages I have presented the results of our 

 investigation in its original intention". While in recent years 



1 have been without the advice and wise counsel of my col- 

 league, I trust, nevertheless, that I have been able to do full 

 justice to our subject, and that I have carried to a successful 

 conclusion the work projected in 1905, continued by us jointly 

 through fifteen happy years, and brought to date and finished 

 by me since Doctor Huntington 's illness and death. 



CHARLES F. W. McCLURE. 



