FACULTIES OF THE MIXJJ. 217 



gans of smell ; and, regardless of the other perfumes arising 

 from the ground, permitting only the scent of the cunning 

 fugitive to make a deep impression. The dog who has lost 

 his master in a crowd, practises the same restraint upon his 

 organs of smell, sometimes, also, on his sense of hearing, as 

 he is able to detect his master by his voice, even when 

 others are speaking at the same time. 



Reasoning from analogy, we may conclude, that the fa- 

 culty of attention reaches as low in the scale of animal life 

 as the organs of sensation. It is necessary in the more per- 

 fect animals, for the regulation of every impression ; hence 

 it is probable that it exists, wherever there are organs to 

 receive an impression. 



The ideas which we thus acquire of external things, by 

 the help of the faculty of attention, are so disposed by the 

 mind, as to be retained in such a manner, that they can be 

 recalled at pleasure, even in the absence of the objects which 

 excited them. There are two faculties employed in this 

 process. In the one the idea is recalled in the condition in 

 which it was first formed ; in the second, a part only of the 

 idea is recalled, in union with the part of some other idea. 

 The former is termed memory ', the latter imagination. 



2. Memory. A variety of circumstances enable us to re- 

 call the idea which a particular impression has formerly pro- 

 duced, and exhibit it in nearly its original condition. This 

 process of recollection is performed by retracing the steps 

 which led to its production, the time and place in which it 

 was excited, and the consequences which followed its recep- 

 tion. 



The tendency of the mind to have impressions recalled by 

 particular circumstances, in preference to others, has been 

 exalted into a separate faculty, denominated the power 

 of association, exhibiting its operations in the production of 



