A 



ANATOMY. 



In Charge of G. S. Huntington. 



The exhibit is designed to illustrate the results obtained by 

 the use of the intra-arterial injection of a lo % Formalin Solution 

 for the purpose of hardening the thoracic viscera in situ. The 

 topographical exposures which can be made in this way afford 

 in many respects entirely novel views of the mutual relations of 

 lungs, mediastinal contents and thoracic walls. 



Plaster Casts. 



1. Topographical Anatomy of Upper Thoracic Region. 



Exhibited by Dr. J. A. Blake. 



a. Portion of Thorax lying above a section passing through 

 sternum at a level just below cartilage of 2d rib and 

 through 6th dorsal vertebra. Hardened in Formalin, 

 pleura removed and structures dissected into relief. 



b. Same except that section passes in a slightly higher plane. 



c. Same, level of section 3d, dorsal vertebra and upper 

 margin of sternum. 



d. New born infant in which respiration had not been 

 established. Formalin; thorax, from which anterior 

 portions and lungs have been removed with parietal 

 pleura. 



e andy. Right and left lungs of same, showing impressions 

 of mediastinal structures, colored to correspond with other 

 casts. 



2. Series of Preparations and Casts, human and com- 



parative, of thoracic cavities and contents. (See label 

 on each preparation for explanation.) 



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