68 THE CAUSATION OF DISEASE. 



Among the different sensory systems (of stomach, lungs, heart, 

 reproductive organs, &c, see Fig. 4) which take part in the 



Fig. 5. 



^yf\^^x Jl '\ """"x. \, Posterior part of the corona 



A '/T\ >^V \"\ ^\\ radiata containing sen- 



rx. \ \ I \ \ sor y fi^ res - 



'? XSy-~*^ y^\ /_/ Posterior third of posterior 



limb of the internal cap- 

 sule. 

 — - Crus. 



-- Pons. 



Medulla, 

 nerve. 



-Spinal cord. 



Diagram showing the sensory system of nerves passing up towards 

 and terminating in the cortex. 



production of the non-intellectual sensations, the reproductory 

 is certainly second to none. Indeed, it very probably stands 



Sight sensory ganglion. 



Fig. 6. 



Ether waves passing on to pupil. 



Luminous object 

 whence ether 



Eiagram showing how the sight sensory system is thrown into 

 activity by ether waves. 



first during the period of reproductive life. It is well known 

 that at the time of puberty a marked change comes over the 



