How to propagate, develop, care for and depict the plants and animals. The volumes in this group cover such a range of subjects that it is impracticable to make them of uniform size.

Already publisht:

NATURE AND HEALTH, by Edward Curtis, Professor Emeritus in the College of Physicians and Surgeons. 12mo. $1.95 net; by mail, $1.37.

THE FRESHWATER AQUARIUM AND ITS INHABITANTS. A Guide for the Amateur Aquarist, by Otto Eggeling and Frederick Ehrenberg. Large 12mo. $9.00 net; by mail, $2.19.

THE LIFE OF A FOSSIL HUNTER, by Charles H. Sternberg.

Arranged for:

PHOTOGRAPHING NATURE, by E. R. Sanborn, Photographer of the New York Zoological Park.

THE SHELLFISH INDUSTRIES, by James L. Kellogg, Professor in Williams College.

CHEMISTRY OF DAILY LIFE, by Henry P. Talbot, Professor of Chemistry in the Massachusetts Institute of Technology.

DOMESTIC ANIMALS, by William H. Brewer, Professor Emeritus in Yale University.