THEIR STRUCTURE, CHANGES, AND LIFE-HISTORIES
With Special Reference to American Forms. Being an Application of the "Doctrine of Descent" to the Study of Butterflies. With an Appendix of Practical Instruction
12mo $1.50 net
Brief Guide to the Commoner Butterflies of the Northern United States and Canada
Being an Introduction to the Knowledge of their Life-Histories
New edition. With 21 plates, containing in all 97 illustrations
12mo $1.50
THE LIFE OF A BUTTERFLY