[Illustration: FRANCIS GUENON.] HOW TO SELECT COWS; OR THE GUENON SYSTEM SIMPLIFIED, EXPLAINED, AND PRACTICALLY APPLIED. BY WILLIS P. HAZARD, _Secretary of the Pennsylvania Guenon Commission; President of the Chad’s Ford Farmers’ Club; a Vice-President of the American Dairyman’s Association; Lecturer upon Agriculture at the Delaware State College, &c., &c.; Author of Treatises “On the Jersey, Guernsey, and Alderney Cow,” and “On Butter and Butter-making;” “The Annals of Philadelphia,” &c._ [Illustration] WITH NEARLY 100 ILLUSTRATIONS _Photographed from Guenon’s engravings._ PHILADELPHIA: J. M. STODDART & CO., 1018 Chestnut Street. 1882 COPYRIGHTED ACCORDING TO ACT OF CONGRESS 1879. PREFACE. The want has long been felt for a hand book which would simplify and explain the invaluable discovery of Guenon, to enable any one to select good stock. There can be no doubt if this discovery is made to be easily acquired, that millions of dollars would be saved to the community by the improvement of herds and a consequent reduction in the price of bovine products, on account of the increased yield and the lower cost of raising it. The State of Pennsylvania, in 1878, appointed a commission to test the system and report upon it. As a member of that commission, we found there was with many a superficial knowledge of the subject, with others enough acquaintance with the system to destroy their faith in it, and with nearly all a desire to obtain sufficient practical knowledge of the system to enable them to judge understandingly and to practice it. With a view to fill these wants, we have undertaken the explanation of the system in the following pages to enable all to fill up their measure of knowledge of the system, so that the superficial shall become thorough, the doubting acquire new faith, and all see its merits _the more they practice and apply it_. We have accordingly given a sketch of M. Guenon and the progress of his discovery; some extracts from his preface explaining his views; an explanation of his system of escutcheon marks; a description of the various escutcheons and their indications of value and quantity, and directions how to practically apply them, together with the report of the Pennsylvania Guenon Commission.