The writer of these pages ought, perhaps, to apologize for attempting a work on a subject, of which he is not a professional master, either in design or execution. In the science of Farm buildings he claims no better knowledge than a long practical observation has given him. The thoughts herein submitted for the consideration of those interested in the subject of Farm buildings are the result of that observation, added to his experience in the use of such buildings, and a conviction of the inconveniences attending many of those already planned and erected. Nor is it intended, in the production of this work, to interfere with the labors of the professional builder. To such builder all who may be disposed to adopt any model or suggestion here presented, are referred, for the various details, in their specifications, and estimates, that may be required; presuming that the designs and descriptions of this work will be sufficient for the guidance of any master builder, in their erection and completion. iv But for the solicitation of those who believe that the undersigned could offer some improvements in the construction of Farm buildings for the benefit of our landholders and practical farmers, these pages would probably never have appeared. They are offered in the hope that they may be useful in assisting to form the taste, and add to the comfort of those who are the main instruments in embellishing the face of our country in its most pleasing and agreeable features—the American Farmer. LEWIS F. ALLEN.