100. The preceding pages have been devoted more especially to the treatment of the 'portrait subject, although some of the illustrations have pointed somewhat to work out of doors, necessarily, as the same rules of art come into play with all classes of subjects. Further on, the fascinating department of landscape photography will be attended to, with different illustrations and notes.

Use the instructions given with due abstinence, and they will act as a healthful tonic in your work; indulged in intemperately, as an enervating: opiate. Stick to stern realities, and do not let them be usurped by visionary ideas. Measure things for what they are worth, and not on account of the day dreams they engender. If your imagination is allowed to transcend these rules of art, some of you will be made lunatics by them, some somnambulists, and very few attain the heroism of art. Enthusiasm is good when controlled. Only a staff is given you here to walk with - only the suggestion that you must walk by principles, to succeed.

As a final illustration of photography done upon art principles an excellent phototype by Mr. F. Gutekunst follows. Here are eleven pictures of one person, in as many attitudes, showing that when art is used as a helper, there is much more than one set position attainable for every model presented for a portrait. As studies with the rules here so imperfectly explained, these pictures are invaluable. Please to give them studious attention.

100. Art is the microscope of the mind, which sharpens the wit as the other does the sight, and converts every object into a little universe in itself. Art may be said to draw away the veil from nature. To those who are perfectly unskilled in the practice, unimbued with the principles of art, most objects present only a confused mass. - Hazlitt.

Excellence in art is to be attained only by active effort and not by passive impressions; by the manly overcoming of difficulties, by the patient struggle against adverse circumstances, by the thrifty use of moderate opportunities. The great artists were not rocked or dandled into eminence, but they attained to it by that course of labor and discipline which no man need go to Rome or Paris or London to enter upon. - Hilliard.

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