Mr. Malthus too has satisfactorily explained the principles of rent, and shewed that it rises or falls in proportion to the relative advantages, either of fertility or situation, of the different lands in cultivation, and has thereby thrown much light on many difficult points connected with the subject of rent, which were before either unknown, or very imperfectly understood; yet he appears to me to have fallen into some errors, which his authority makes it the more necessary, whilst his characteristic candour renders it less unpleasing to notice.