ORGANS OF NEURAL EXCRETION 103 



our opinion, excretory bodies known as the tonsils and 

 uvula respectively, hence the frequency with which ail- 



FIG. 34. SAGITTAL SECTION OF THE PITUITARY BODY AND INFUNDI- 

 BULUM WITH THE ADJOINING PART OF THE 3RD VENTRICLE. 

 (Schwalbe.) 



a, anterior lobe; a', a projection from it towards the front of the infundibulum, i\ 

 b, posterior lobe connected by a solid stalk with the infundibulum ; I.e., lamina 

 cinerea ; o, right optic nerve ; ch, section of chiasma ; r.o.. recess of the ventricle 

 above the chiasma ; c.m., corpus mammillare. 



ments, involving the basal aspect of the cranial contents, 

 synchronise with those attacking the throat textures, and 

 the grounds for inferring that this is due to structural as 



" 



FlG. 35. VIEW FROM BELOW OF THE CARTILAGINOUS BASE OF THE 

 CRANIUM WITH ITS OSSIFIC CENTRES IN A HUMAN FOETUS OF ABOUT 



FOUR MONTHS. (From Huxley, slightly altered.) 



The bone is dotted to distinguish it from the cartilage, which is shaded with lines, 

 i, the basilar part ; 2, the condyloid or lateral parts ; and 3, 4, the tabular or 

 superior part of the occipital surrounding the foramen magnum ; 5, centres of the 

 presphenoid on the inside of the optic foramen ; 6, centres of the post-sphenoid ; 

 7, centres of the lesser wings or orbito-sphenoid ; 8, septal cartilage of the nose ; 

 9 and 10, parts of the labyrinth. 



well as functional continuity and inter-dependence. There- 

 fore, a meaning is thus given to the hitherto apparently 

 accidental coincidence of head and throat, as well as face 

 affections, and a key supplied whereby the most effective 



