Professor of Agricultural Chemistry, University of Minnesota, and Chemist of the Minnesota Agricultural Experiment Station

The Chemistry of Plant and Animal Life

Illustrated. Cloth. 12mo. 406 pages. $1.25 net; by mail, $1.35

"The language is, as it should be, plain and simple, free from all needless technicality, and the story thus told is of absorbing interest to every one, man or woman, boy or girl, who takes an intelligent interest in farm life."—The New England Farmer.

"Although the book is highly technical, it is put in popular form and made comprehensible from the standpoint of the farmer; it deals largely with those questions which arise in his experience, and will prove an invaluable aid in countless directions."—The Farmer's Voice.

Dairy Chemistry

Illustrated, 190 pages, $1.00 net; by mail, $1.10

"The book is a valuable one which any dairy farmer, or, indeed, any one handling stock, may read with profit."—Rural New Yorker.

Soils and Fertilizers

Third Edition. Illustrated. $1.25 net; by mail, $1.38

A book which presents in a concise form the principles of soil fertility and discusses all of the topics relating to soils as outlined by the Committee on Methods of Teaching Agriculture. It contains 350 pages, with illustrations, and treats of a great variety of subjects, such as Physical Properties of Soils; Geological Formation, etc.; Nitrogen of the Soil and Air; Farm Manures; Commercial Fertilizers, several chapters; Rotation of Crops; Preparation of Soil for Crops, etc.