HEADQUARTERS OF INTELLIGENCE 47 



gamey. That is where some naturalists believe 

 that the sense of smell is situated in insects. Others, 

 however, think, with reason, that it is in the antennae 

 or mouth. Nobody knows ; the senses of the lower 

 animals seem to be stuck about all parts of the body. 



But, even if the sense of smell is at the mouth, 

 how limited must its usefulness be when it can only 

 deal with substances that are held to it ! A new era 

 dawned when the passages by which the breath of 

 life unceasingly comes and goes were transferred to 

 the region of the mouth also. The nerves of smell 

 quickly spread themselves over the lining membrane 

 of those passages and became warders of the gate, 

 challenging every waft of air that entered the body 

 and examining what it carried. Thenceforth this 

 region comprising the mouth, nostrils and surround- 

 ing parts holds a new and high place in the economy 

 of the body, for the headquarters of the intelligence 

 department are located there, and all the faculties 

 of the brain converge on that point. Of course, 

 the eyes and ears claim a share, but they are not far 

 off. 



Now it is being recognised more and more clearly 

 by medical and physiological science that when 

 the mind is much directed to any part of the body 

 it exercises an influence in some way not under- 

 stood on the flow of blood to that part to a degree 

 which may seriously affect its functions and even 

 its growth. When a person is suffering from any 

 nervous affection, from heart disease, or even from 



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