nervous
organism reports differences and qualities and the Mind is thus informed
of the nature of the object.

The sense of Smell is very highly developed among animals, who are
compelled to rely upon it to a considerable extent. And many occupations
among men require the development of this sense, for instance, the
tobacconist, the wine dealer, the perfumers, the chemist, etc. It is
related that in the cases of certain blind people, it has been observed
that they could distinguish persons in this manner.

The sense of Hearing is a more complex one than in the case of Taste,
Touch and Smell. In the latter three the objects to be sensed must be
brought in close contact with the sense-organs, while in Hearing the
object may be far removed, the impressions being carried by the
vibrations of the air, which are caught up and reported upon by the
nervous organism of the sense of Hearing. The internal mechanism of
the ear is most wonderfully intricate and complex, and excites to wonder
the person examining it. It cannot be described here for want of space,
but the student is advised to inquire into it if he has access to any
library containing books on the subject. It is a wonderful illustration
of the work of the mind in building up for itself instruments with which
to work--to acquire knowledge.

The ear records vibrations in the air from 20 or 32 per second, the rate
of the lowest audible note, to those of 38,000 per second, the rate of
the highest audible note. There is a great difference in individuals in
regard to the fineness of the sense of Hearing. But all may develop this
sense by the application of Attention. The animals and savages have
wonderfully acute senses of Hearing developed only along the lines of
distinctness, however--on the other hand musicians have developed the
sense along different lines.

The sense of Sight is generally conceded to be the highest and most
complex of all the senses of Man. It deals with a far larger number of
objects--at longer distances--and gives a far greater variety of
reports to the mind than any of its associate senses. It is the sense of
Touch magnified many times. As Wilson says of it, "Our sight may be
considered as a more delicate and diffusive kind of touch that spreads
itself over an infinite number of bodies; comprehends the largest
figures, and brings into our reach some of the most remote parts of the
universe."

The sense of Sight receives its impressions from th