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APPENDIX 



Text-fig. 46. The decerebrating frame. 



Text-fig. 47. a. Diagram showing plane of severance, v-v, by the decerebrator, and action 

 of ligature in occluding vertebral arteries behind lateral wings of atlas vertebra ; t, occipital lobe of 

 cerebrum ; h, hyoid bone ; arrows indicate course of vertebral artery ; the cord ligature is indicated 

 in broken line ; 1, 2, 3, cervical vertebrae. B. First three vertebrae viewed from dorsal aspect, 

 with vertebral arteries (black) passing from axis to atlas, and cord ligature for compressing them. 



