TRACT 



INFUNDIBULUM INFUNDIBULAR PARS 



PROCESS ANTERIOR 



ANTERIOR COMMISSURE 



ANTERIOR 



OPTIC CHIASM^ 



INFUNDIBULUM PARS INFUNDIBULAR 

 ANTERIOR PROCESS 



Fig. 2. — Photographs of sagittal sections taken from tlic series on Dog 28 which show tlie 

 location and extent of the tissue defect which eliniinated all physiological resistance to hypo- 

 thermia. The upper section is from near tiie mid-line, the lower section from a more lateral 

 position. Note the absence of any distortion of the tissue located immediately adjacent to the 

 tissue defect. 



64 



