THE PRINCIPLES OF VEGETABLE-GARDENING. By L.H. BAILEY. 468 pp. 144 illustrations. $1.25.

THE FEEDING OF ANIMALS. By W.H. JORDAN, of New York State Experiment Station. $1.25 net.

FARM POULTRY. By GEORGE C. WATSON, of Pennsylvania State College. $1.25 net.

CARE OF ANIMALS. By N.S. MAYO, of Connecticut Agricultural College. $1.25 net.

New volumes will be added from time to time to the RURAL SCIENCE SERIES. The following are in preparation:

PHYSIOLOGY OF PLANTS. By J.C. ARTHUR, Purdue University.

BREEDING OF ANIMALS. By W.H. BREWER, of Yale University.

PLANT PATHOLOGY. By B.T. GALLOWAY and associates of U.S. Department of Agriculture.

Comprises practical hand-books for the horticulturist, explaining and illustrating in detail the various important methods which experience has demonstrated to be the most satisfactory. They may be called manuals of practice, and though all are prepared by Professor Bailey, of Cornell University, they include the opinions and methods of successful specialists in many lines, thus combining the results of the observations and experiences of numerous students in this and other lands. They are written in the clear, strong, concise English and in the entertaining style which characterize the author. The volumes are compact, uniform in style, clearly printed, and illustrated as the subject demands. They are of convenient shape for the pocket, and are substantially bound in flexible green cloth.

THE HORTICULTURIST'S RULE-BOOK. By L.H. Bailey. Fourth edition. 312 pp. 75 cts.