PLATE XXVII 



Plate XXVII is from a photograph of the posterior 

 surface of the trunk, shown in Plate XXVI and reduced 

 in the same proportion. 



The photographs were taken, in order to show the exact 

 position of each section and its relations to the various 

 landmarks of the body. 



The number on each section corresponds to the num- 

 ber of the plate showing the upper surface of that section. 



126 



