Topography. 



177 



Horizontal Section through the Shoulder, 



in the Kegion of the Great Tuberosity. 



For all sections the following will serve as an explanation : 



The sections were made with the saw on hard frozen cadavers, 

 and the drawings taken in 2 / 3 the natural size, after the sawn surface 

 was washed with water, and slightly thawed. 



For all horizontal sections the right extremity was chosen, and the 

 drawings made from the lower cut surface; we therefore see 

 the sections as if on a person standing with his right 

 side towards us, in bird's eye view. 



By a horizontal section is meant one which falls vertically 

 on the long axis of the body (the extremity); by a frontal section one 

 which divides the body (the extremity) into an anterior and a posterior 

 half; by a sagittal section one, which runs parallel with the median 

 plane, therefore divides the body (the extremity) into a right and left, or 

 external and internal half. 



Heitzmann, Atlas. I. 23 



