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; 

 6, 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 



