Observation. Many persons impair their taste by bad habits, as chewing and smoking tobacco, and using stimulating drinks, and pungent condiments with the food. These indulgences lessen the sensibility of the nerve, and destroy the natural relish for food.
What is true of the Indian? 875. Is this sense modified by habit? Give instances. How is this sense sometimes impaired?
CHAPTER XLIII.
SENSE OF SMELL.
876. This sense is located in the air-passages of the Nose. To understand the function of smell, the structure of the nose and nasal cavities, with the distribution of the olfactory nerves, must be first examined.
ANATOMY OF THE ORGANS OF SMELL.
877. The NOSE is composed of the Bones, Fi´bro-car´tilages, and Mu´cous Mem´brane, together with its integuments.
878. The BONES of the nose are the nasal, and the nasal processes of the upper jaw.