[Illustration: The horse probang as at the present made. That which should be employed. THE HORSE PROBANG, AS IT IS AND AS IT OUGHT TO BE.] The probang intended for the horse should be formed like that employed upon the human subject. It should consist of a long slip of fine whalebone, having a sponge fixed to one end; when required, the sponge should be thoroughly saturated in water or in oil, (according to the circumstances,) then squeezed dry and forced down the œsophagus. The material would adapt itself to every cavity, would fill the largest, but could not harm the smallest; would as effectually remove every obstruction, but would not be so difficult to retract, if the head should by accident pass the cardiac orifice. BRONCHOCELE. This disease, which entails much suffering upon the human species, under the name of "goitre," is, in the horse, a very trivial affair. The cause of its origin has not yet been made plain. It is, however, a sign that nature suffers in some essential particular. In the sunless depths of the valleys about the Alps, it is, with man, a frightful deformity. May not the dark and close stables, in which horses too often are confined, have something to do with its production in these animals? It is an enlargement of a substance anatomically called the thyroid gland. This body resides upon the larynx, immediately under the jaw. It is occasionally as large as a hen's egg, but seldom is of greater magnitude. Its natural size is that of half a chestnut. The enlargement appears to occasion no inconvenience, and is only objected to because horsemen consider it unsightly. Purchasers, moreover, are fastidious about buying an animal which exhibits any unusual development. It, however, generally yields to treatment, and the animal need not be taken from gentle work during the time occupied by the cure. Let the following drink be given night and morning:-- Iodide of potassium Half a drachm. Liquor potassæ One drachm. Distilled water Half a pint. At the periods stated for giving the medicine, rub into the enlargement a portion of the annexed ointment. Remember, any of the unguent being left upon the hair is proof positive that sufficient friction has not been employed. The ointment can in no way benefit the external covering. The object of friction is to get the ointment absorbed. This it effects by promoting warmth, and thereby inducing dryness, both of which stimulate the pores of the skin to take up outward moisture.