An old terrier is brought to the mouth of the earth in which a vixen fox--a fox with her young ones--has taken up her abode, and is sent in to worry and drive her out. Some young terriers are brought to the mouth of the hover, to listen to the process that is going forward within, and to be excited to the utmost extent of which they are capable. The vixen is at length driven out, and caught at the mouth of the hole; and the young ones are suffered to rush in, and worry or destroy their first prey. They want no after-tuition to prepare them for the discharge of their duty. This may be pardoned. It is the most ready way of training the young dog to his future business; but it is hoped that no reader of this work will be guilty of the atrocities that are often practised. An old fox, or badger, is caught, his under jaw is sawn off, and the lower teeth are forcibly extracted, or broken. A hole is then dug in the earth, or a barrel is placed large and deep enough to permit a terrier, or perhaps two of them, to enter. Into this cavity the fox or badger is thrust, and a terrier rushes after him, and drags him out again. The question to be ascertained is, how many times in a given period the dog will draw this poor tortured animal out of the barrel--an exhibition of cruelly which no one should be able to lay to the charge of any human being. It is a principle not to be departed from, that wanton and useless barbarity should never be permitted. The government, to a certain extent, has interfered, and a noble society has been established to limit, or, if possible, to prevent the infliction of useless pain. The terrier is, however, a valuable dog, in the house and the farm. The stoat, the pole-cat, and the weazel, commit great depredations in the fields, the barn, and granary; and to a certain extent, the terrier is employed in chasing them; but it is not often that he has a fair chance to attack them. He is more frequently used in combating the rat. The mischief effected by rats is almost incredible. It has been said that, in some cases, in the article of corn, these animals consume a quantity of food equal in value to the rent of the farm. Here the dog is usefully employed, and in his very element, especially if there is a cross of the bull-dog about him.