powers that she was regularly employed 

 in assorting the clothes of the pupils 

 as they came from the wash, that oper- 

 ation not being far-reaching enough 

 to remove the signs which were known 

 to her alone. The case of James 

 Mitchell, who was deaf and blind from 

 his birth, is remarkable, for he could 

 detect the approach of a stranger in 

 this way. 



Those who have made a thorough 

 study of the subject claim that there 

 is a peculiar odor belonging to every 

 class of living beings, and each is sub- 

 divided so that each order, family, 

 species, race, and variety is distinct. 

 Furthermore every individual is dis- 

 tinct from the rest of his kind in the 

 odor given off so profusely and uncon- 

 sciously in most instances. 



Horses seem to be somewhat less 

 keen than dogs in noting odors, for a 

 horse which is accustomed to but one 

 groom and will not consent to attend- 

 ance from another may sometimes be 

 deceived by having the new groom 

 dress himself in the clothes of his 

 predecessor. 



Insects possess this sense to such a 

 degree that flies have been the means 

 of locating a dead rat under a floor by 

 their settling over the body in large 

 numbers, although there was no chance 

 for them to reach it. Just where the 

 organs of smell are in insects has been 

 disputed among scientists. Sir John 

 Lubbock is inclined to the opinion 

 that they are located in the antenns; 

 and palpi, though some contend that 

 insects smell as the air is taken in at 

 the spiracles or breathing-holes which 

 are scattered over their bodies. 



That fish have this sense to some 

 extent is attested by fishermen who 

 use essential oils upon their bait and 

 secure readier attention from the in- 

 habitants of the water. But fish seem 

 to be less capable of smell than even 

 the reptiles upon land who are not 

 considered at all remarkable in this 

 respect. To make up in some sort for 

 this deficiency there are some kinds of 

 fish which have four nostrils while all 

 other animals that smell at all seem 

 content with but two as a rule. 



Only those animals having a back- 

 bone are equipped with noses that are 



unquestionably adapted to smelling, 

 but insects, crabs, and mollusks per- 

 ceive odors to a limited extent. Some of 

 them are readily deceived by odors 

 similar to those they seek. Lubbock 

 calls attention to the fact that the car- 

 rion fly will deposit its eggs on any 

 plant that has a smell similar to that 

 of tainted flesh. 



We are unable to say just what the 

 nature of a sniellingsubstance is which 

 makes it so perceptible to our olfac- 

 tory organs. Many things, both or- 

 ganic and inorganic, have the power 

 to affect us in a way which cannot be 

 perceived by the organs of taste nor 

 touch. The upper third of the interior 

 of the human nose has the sole func- 

 tion of recognizing them. We have 

 almost no names for the various smells, 

 but they are as distinct as day and 

 night and arouse within us the most 

 intense feelings. 



We are not only without names for 

 smells, but we are far from being 

 agreed as to the qualities of them. To 

 one person the odor of sweet peas is 

 delightful, while to another it is quite 

 the reverse. Sometimes we consider 

 a smell pleasant merely because of the 

 associations it brings. The odor of 

 pine lumber is grateful to one who has 

 spent a season in the lumber districts 

 where sawmills abound; and so the 

 smell of an ordinary lumber pile gives 

 pleasure to one where to another it is 

 somewhat disagreeable. 



The sense of smell is one that tires 

 most readily. After smelling certain 

 odors for awhile one loses temporarily 

 the power to notice them at all. The 

 sense does not tire as a whole, but it 

 merely becomes inoperative with re- 

 spect to the odor continually present. 

 Almost any perfume held to the nose 

 soon loses its charm, and is only effec- 

 tive again after a temporary absence. 

 But while one perfume is not sensed a 

 new one presented to the nostrils is 

 eagerly appreciated, showing the sense 

 to be fatigued only with regard to 

 what has been there for some time. 

 The owner of a large rendering estab- 

 lishment in a city was called upon by a 

 committee of citizens who objected to 

 the smells arising from his plant. He 

 went out with the committee to inspect 



