Through spring's gay scenes each happy pair Their fluttering joys pursue; Its various charms and produce share, Forever kind and true." CHICAGO, U. S. A. NATURE STUDY PUBLISHING COMPANY, PUBLISHERS 1896 * * * * * PREFACE. It has become a universal custom to obtain and preserve the likenesses of one's friends. Photographs are the most popular form of these likenesses, as they give the true exterior outlines and appearance, (except coloring) of the subjects. But how much more popular and useful does photography become, when it can be used as a means of securing plates from which to print photographs in a regular printing press, and, what is more astonishing and delightful, to produce the REAL COLORS of nature as shown in the subject, no matter how brilliant or varied. We quote from the December number of the Ladies' Home Journal: "_An excellent_ suggestion was recently made by the Department of Agriculture at Washington that the public schools of the country shall have a new holiday, to be known as Bird Day. Three cities have already adopted the suggestion, and it is likely that others will quickly follow. Of course, Bird Day will differ from its successful predecessor, Arbor Day. We can plant trees but not birds. It is suggested that Bird Day take the form of bird exhibitions, of bird exercises, of bird studies--any form of entertainment, in fact, which will bring children closer to their little brethren of the air, and in more intelligent sympathy with their life and ways. There is a wonderful story in bird life, and but few of our children know it. Few of our elders do, for that matter. A whole day of a year can well and profitably be given over to the birds. Than such study, nothing can be more interesting. The cultivation of an intimate acquaintanceship with our feathered friends is a source of genuine pleasure. We are under greater obligations to the birds than we dream of. Without them the world would be more barren than we imagine. Consequently, we have some duties which we owe them. What these duties are only a few of us know or have ever taken the trouble to find out. Our children should not be allowed to grow to maturity without this knowledge. The more they know of the birds the better men and women they will be. We can hardly encourage such studies too much." Of all animated nature, birds are the most beautiful in coloring, most graceful in form and action, swiftest in motion and most perfect emblems of freedom.