Title cont'd: whereby the Quality and Quantity of Milk which any Cow will Give may be accurately determined by observing natural marks or external indications alone; the length of time she will continue to give milk, &c. 

Introductory remarks and observations on the cow and the dairy by John B. Skinner. Illus. with wood engravings. Blindstamped brick cloth, gilt-lettered spine. NY: Orange Judd, [1856].

Francis Guenon developed the Guenon Method, which is laid out in this book, of judging the milking life of a dairy cow by her physical attributes. This system was adhered to throughout the 19th century. A couple spots to covers, else very good, with wonderful illustrations. 

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