PLATE II 



FIG. 38. Radiograph of Half a Head in which the various fissures, etc., 

 shown have been made visible by metal filaments, by cords impregnated 

 with metallic powders, or by means of metallic powder. 



1. Coronal suture. 



2. Interventricular foramen. 



3. Ascending limb of lateral fissure. 



4. Inferior frontal sulcus. 



5. Anterior horizontal limb of lateral 



fissure. 



6. Second temporal sulcus. 



7. Basilar artery. 



S. Internal carotid artery at side. 



hypophyseal fossa. 

 9. Line of superior border of external 



acoustic meatus and lower margin 



of orbit. 



10. External acoustic meatus. 



11. Pharyngeal orifice of auditory tube. 



12. Body of occipital bone. 



13. Anterior arch of atlas. 



14. Position of tonsil. 



15. Vertebral artery. 



16. Fourth ventricle. 



17. Transverse sinus. 



1 8. Calcarine fissure. 



19. Lambdoid suture. 



20. Chorioid plexus. 



21. Parieto-occipital fissure* 



22. First temporal sulcus. 



23. Posterior limb of lateral fissure. 



24. Upper surface of corpus callosum. 



25. Central sulcus. 



26. First frontal sulcus. 



27. Temporal ridge. 



