In connexion with the small holdings in Ireland, it should not be forgotten that this subdivision of the land results mainly from the practice of sub-letting; and this again has arisen in a great degree from the practice of granting long leases, the want of which in England has served, among many other things, for an outcry against the landlords. Mr M'Culloch has pointed out the evils of too long leases on the farming tenant, that they superinduce a sense of security which easily degenerates into indolence. But the influence on Ireland is even worse, by breaking up the land into small patches, on which the occupier can but just maintain himself, paying an exorbitant rent to the middleman. For it is not the eager demand for land amongst the Irish peasantry, as we sometimes hear, that has produced this subdivision of the land, but the subdivision that has produced the demand, by putting the cultivation of the land into the hands of a class who are unable, through want of skill and capital, to carry it on; who cannot, therefore, furnish employment for the labourers, and thus drive them to grasp at little parcels of land as their only means of securing a wretched subsistence; and this security, as we know, has more than once proved but a fancied one, as in the disastrous failure of the potato crop. While we are on this subject, we may draw the reader's attention to a very able pamphlet by an Irish gentleman, on Irish matters, which, though we believe it has never been published, has had an extensive private circulation. We allude to "An Address to the Members of the House, of Commons on the Landlord and Tenant Question, by Warren H. R. Jackson, Esq." The work, though somewhat tinged with the hard politico-economical school, is written with great shrewdness of thought and freedom from prejudice, and is well worthy the careful attention of the honourable House. The writer, in discussing the vexed question he has taken in hand, fully coincides with the general principles laid down by Mr M'Culloch. "This," he says, (speaking of the subdivision of land) "is one of the monster grievances of Ireland, and you will do little good unless you abate it." This abatement he would bring about mainly by prospective laws, as by placing all contracts for subletting _hors la loi_, and so taking away from the first lessee all power of recovering his rent from the actual tenant. We cannot but think that this would be found a most salutary enactment. It should be remembered, that the occupier is responsible to the owner of the freehold by the power of distress vested in the latter, and it is but just that he should be relieved from the liability to pay two rents--a liability which it is manifest no good farmer would incur, but which the squalid ravager of the soil in Ireland is always eager for.