The last champion of increased production as an antidote against free trade, is not the type of a class, but a single individual--whose testimony, however, being in some respects practical, is worth more than that of all the chemical doctors and interested landlords put together. We allude to Mr James Caird, whose pamphlet, entitled "High Farming under Liberal Covenants, the best Substitute for Protection," has already excited so much attention, that, if rumour does not err, its author has been deputed by government, at the recommendation of Sir Robert Peel, to visit Ireland with the view of reporting upon the agricultural capabilities of that country. We shall presently have occasion to examine the details of that pamphlet, as minutely as their importance deserves; at present we shall merely note, in passing, that it does not profess to set forth the results of the author's _own_ practical experience, although Mr Caird is well known to be a farmer of great intelligence and ability; and, further, that it directly points to _liberal covenants_ on the part of the landlord as an indispensable basis of the arrangement. In fact, therefore, we find that Lord Kinnaird and Mr Caird, though both writing on the same side, entertain views widely differing from each other, as to the future terms of adjustment between the two great agricultural classes. Lord Kinnaird is for "high rents;" Mr Caird for "liberal covenants." It is impossible that both of them can be right; and were we to join issue solely upon the facts which each of them has adduced, we should have no hesitation in deciding in favour of the practical farmer. But we apprehend that, even with the aid of liberal covenants, Mr Caird has failed in making out his case, as we shall shortly prove, when we proceed to analyse his statements.