THE WORTH KNOWING SERIES
Four Volumes, Containing nearly 200 Illustrations, 144 of Which Are in Colour
Fully Indexed
Birds Worth Knowing By Neltje Blanchan Trees Worth Knowing By Julia Ellen Rogers Butterflies Worth Knowing By Clarence M. Weed Flowers Worth Knowing Adapted from the works of Neltje Blanchan By Asa Don Dickinson
The Worth Knowing Series forms a much needed in-between link to the larger Nature-Library books and the handy, but necessarily limited, Pocket Nature Guides.
Each of these four volumes covers the most interesting American varieties of the subject treated.
A general introduction to each subject is followed by detailed descriptions of the most interesting families, and of the more important members in each group.
THE BUTTERFLY GUIDE
By DR. W. J. HOLLAND
Author of “The Butterfly Book,” “The Moth Book,” Etc. Similar to the “Pocket Nature Guides”
This is the first Butterfly Book of pocket size giving each species in its natural colours. It is uniform in style and binding to the popular Pocket Nature Guides series, and makes a valuable companion volume to these books.
Dr. Holland, Director of the Carnegie Museum, Pittsburg, is the greatest butterfly authority in the country, and has had more experience in the mounting and artistic posing of moths and butterflies than any other living man. The plates in the Pocket Guide are entirely new and reproduced by a special process under Dr. Holland’s personal supervision, from specimens in his own collection.