64 UNIVERSITY OF MISSOURI STUDIES 



through the middle of each thoracic or lumbar vertebra or 

 intervertebral disc. Each part is given at the level which 

 comes nearest to it. Thus the upper border of an organ 

 may be at the level of the upper border of a centrum, but 

 will appear in the table as if cut by the section through the 

 disc above, because that level shows more accurately the 

 position of the part than the level through the middle of 

 the centrum. 



The first column of the table shows the level of the 

 section, upon the vertebral column, which would pass 

 through the parts named in the second column. The third 

 column is a condensation of Quain's^ table of levels and is 

 included in this table to show what each plane would pass 

 through were all the parts in their average position. 



The skeletal parts are named first in each column, be- 

 ginning each time at the anterior midline and going around 

 the lateral body wall to the vertebral column. 



1 Thane, G. D. and Goalee, R. J., Quain's elements of anatomy. 

 Appendix. Superficial and surgical anatomy. London, 1896. 



