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.

This book is the most authoritative and valuable guide for field use ever published. It makes the identification of our common butterflies a simple matter for amateurs.

Illustrations of 250 butterflies in their natural colors.

Index. Boxed. Flexible Linen, net, $1.00; Full Limp Leather, net, $1.25

FLOWER GUIDE

By CHESTER A. REED, B. S.

A guide to the common wild flowers found in the Eastern and Middle States. Wild Flower Guide is the same size and scope as Bird Guide. It has had an extraordinary sale and has been adopted and used in quantities in many of our leading colleges and schools.

The COLORED ILLUSTRATIONS, 192 in number, are beautiful, artistic and accurate reproductions from oil paintings; the finest series ever made. The text tells where each is found, when it blooms, whether in woods, fields, swamps, etc., the height that the plant attains, whether it is self-fertilized or cross fertilized by insects and how; in fact it gives a great deal more information than one would think possible in a book to fit comfortably in the pocket.

Bound in Cloth, 75c.; in Leather, $1.00; postage 5c.

NATURE STUDIES—IN FIELD AND WOOD