It would be utterly vain to attempt, by quotation, to give our readers any idea of the extent and variety of the contents of this work; but we may say that we would feel infinitely surprised if an inquirer into any subject touching the culture and drainage of the soil,--or relating to the management of stock,--or into any of the collateral arts and sciences, so far as they are connected with agriculture,--or into any duty or employment in which the owner or occupant of the soil may be called upon to engage,--or into any difficulty likely to overtake him in the discharge of that duty, and out of which a more perfect knowledge and skill may extricate him,--shall _not_ find in _The Book of the Farm_ the information of which he is in quest. In the parts of the work that are strictly theoretical, we conceive that much originality will be found in the author's exposition of the rationale of the feeding of animals, of the germination of seeds, and of the action of special manures. He states the result of every modern experiment worth noting. The present edition contains, in fact, a digest of every experiment, down to the present date, that has been tried in the cultivation of crops, and in the management and feeding of stock--not omitting Mr Huxtable's method of feeding sheep--and of every new light and discovery worthy of preservation made by agricultural chemists. We admire the excellent sense and discretion with which the author addresses the practical farmer regarding the reception which he ought to give to the discoveries of modern science. These are not to be instantly and obstinately rejected, because they may be not only true, but ultimately of great practical value; they are not to be fanatically entertained and temerariously adopted, for, if not scientifically untrue, they may be utterly abortive in application, and may conduct only to bitter disappointment, and, in the case of the tenant-farmer, to an unwarrantable waste both of time and money. Nothing, in point of fact, has more injured chemical science in its relations to agriculture, than the exaggerated expectations and promises that have been held out regarding its discoveries. While, in the chemist's room, the result of an experiment may be demonstrable, it should never be forgotten that, in the laboratory of nature, the elements and agents are not under our perfect control, and that the rise or fall of a few degrees in the thermometer may utterly nullify the most perfect manipulation of the most expert experimenter. Climatic, atmospheric, and physiological peculiarities effect strange differences on the constitution and habits of plants and animals; and although scientific research may sometimes be able to detect the causes, it may be utterly unable to assist us in removing them. The supralapsarian employment of our great progenitor was horticultural rather than agricultural; but while the art of husbandry dates from the sad exile from Eden, it