SYSTEMATIC SYNTHESIS OP TISSUES INTO ORGANS. 289 

 FIG. 196. 

 3 9 



Fig. 196, a section of nose a little to the left of central partition ; 2, 

 nerve of smell ; 2, 9, 8, 7, 4, nerves of common sensation ; 5, 6, motor 

 nerves of soft palate ; 3, speno-palatine ganglion ; 12, deep petrous con- 

 nection between the ganglion and the carotid plexus, and thus with the 

 sympathetic. 



layer of cells that protects the corpuscles in which the 

 nerve-fibres of smell commence, and some change that is 

 wrought in them produces, as an ultimate result, a sen- 

 sation of smell. 



731. From the DIFFERENT EFFECTS PRODUCED BY 

 DIFFERENT SUBSTANCES, as in case of taste, their charac- 

 teristics may be learned, and they may be distinguished. 



732. MUCH ENJOYMENT IS ALSO ATTAINABLE THROUGH 



THE SENSE OF SMELL by judicious treatment. It is the 

 province of the sense of smell to enjoy the sweet odors 

 of flowers, the freshness of the cultivated fields, and the 

 fragrance of the wildwoods. Nor are the arts of the 

 perfumer to be disesteemed. The savor of preparing 

 food quickens the appetite, heightens the pleasure of 

 eating, and facilitates digestion. 



Describe Fig. 196. Where do the nerves of common sensation, 2, 9, 8, 7, 4, ter- 

 minate ? 731. What said of ? 732. How is ? 

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