“The whole system is very clearly laid down, so that any one, by practice and study, may learn from this work how to use it. The arguments for and against are also set forth, with proofs of the value of the system. Our dairymen would do well to study the subject and be able to guess as well as the members of the commission on the value of the cows examined by them.”—American Dairymen.

“In itself, the system is very simple, and, with care, easily understood; and, taking into consideration its great importance, should be studied and acquired by all who are directly or indirectly interested in farming, and as so many opportunities are offering to obtain a practical knowledge of the method, there can be no excuse for ignorance any longer. The system of judging the value of cows has become so thoroughly arranged that with a little practice, enough can be learned from it in a short time to serve any one making use of it, and thereby avoiding loss.

“The bulls are found marked with corresponding designs, as far as the sex permits, which indicate unerringly their good and poor qualities; and thus by a wise use of the knowledge acquired through the Guenon method, stock breeders can judiciously, and with almost certainty, select their cattle for the purposes in view, either for milking, butter-making, or beef, according to their desire, for all these results follow its teachings.”—State Fair Daily.

“Mr. Hazard has given us a most interesting work upon a system that has gained the respect and consideration of thinking farmers the world over.”—Farm and Fireside, Springfield, Ohio.

“Mr. Hazard is, no doubt, the best posted supporter of the system in this country, and may be regarded as authority. If his recommendations for the selection of dairy stock are worthless then the whole Guenon system may be condemned as being utterly fallacious. His book deserves careful attention from intelligent farmers.”—Bucks County Intelligencer.

“In a majority of cases, the marks have been reliable, and this should incite all dairy folks to know what is said about it.”—Meehan’s Gardner’s Monthly.

“It embraces a sketch of Guenon, and the progress of his discovery; extracts from his preface explaining his views; an explanation of his system of escutcheon marks; descriptions of the various escutcheons and their indications of value and quantity, and directions how to apply them in practice, together with the report of the commission of which the author served as secretary. Nearly one hundred illustrations are given, those of the escutcheons being photographed from the drawings in Guenon’s last revised edition.”—Country Gentleman and Cultivator.

“Remarkable as was M. Guenon’s method, and although his discoveries were duly made known in this country, this is the first time that his methods have been compiled for practical use. By the use of this little handbook, there can be no doubt, but that farmers and stock raisers would save a vast amount of money. The explanations are simple and easily followed, the numerous illustrations serving to elucidate the text.”—Boston Evening Traveler.

“Beginning with a little sketch of the method of the birth of the system in Guenon’s mind, the author goes on in a clear and concise manner to explain by plain language and appropriate drawings, the various so called ‘milk mirrors’ and their values, being properly understood, as aids in selecting good dairy stock. The various opinions of those adverse to the ‘theory’ are fairly discussed, and the reports of various agricultural societies which have from time to time investigated it are given, together with the report of the Pennsylvania commission. Taken altogether, Mr. Hazard has succeeded in making a very readable, interesting and valuable book, and one which, whatever may or may not be the preconceived ideas of its reader, cannot fail to interest and instruct him upon a subject which should be far better understood amongst farmers generally, than it at present is.”—New England Homestead.

“A very valuable pamphlet. Mr. Hazard has devoted great attention and study to the subject, with a view of rendering the system popular, and we happen to know that his work is largely appreciated, especially by the farmers of New England, from the number of orders received for the book. The discovery made by Mr. Guenon, and the practical principles founded on it are invaluable, and the saving to the country by its general knowledge will be very great. The State of Pennsylvania, in 1878, appointed a commission to test the system and report on it. Mr. Hazard was a member of the commission, and has added the results of much study and research. He has been invited to lecture and present the subject at the annual meeting of the Massachusetts State Board of Agriculture, at Greenfield, and has many invitations and engagements in other places.”—Massachusetts Ploughman.

“This volume embraces all the essential matters in Guenon’s treatise. It is really a valuable contribution to dairy literature.”—Southern Cultivator.

“Every farmer should study Guenon.”—Farm Journal.

“Dairymen and stock raisers should send for a copy.”—Rural Nebraska.