This much was spoken to my girls. I might leave the shape and width of the heel to the intelligence of the reader; but as the most preposterous heels have been recently introduced, it is perhaps judicious to point out the physiological mischief. The heels of the fashionable ladies' shoes at the present moment--quarter past three, P.M., August 4th, 1870,--are two inches high, and at the bottom not larger than an old-fashioned silver quarter of a dollar, if anybody can remember how large that was. Need it be argued that this absurd fashion weakens the ankle, and jams the toes into the sharp points of the boots? If a woman were to walk as much as her health requires, with those most unphysiological heels, her feet would soon be crippled. The ankle, the heel, the arch of the foot and the toes must all suffer. It need hardly be said that heels should be broad, long and low. The great advantage in elasticity and firmness which would come at once in the manner of walking, would, even as to stylishness, more than compensate for the absence of the fashionable Shanghai heels. SHOULD THE SHOE SUPPORT THE ANKLE? Shoes of a peculiar structure have been employed to support the ankle. Medical men have even advised the introduction of brass, or other metallic straps, to be laced in the shoe about the ankle, to give support in walking. The ordinary shoe is made so as to fit the ankle very closely, under the impression that thereby the ankle is supported. This is an error. If the ankles were to be used but a day or a week, such support might serve; but as no one intends to rely permanently upon such artificial support, and as any pressure checks the circulation and the development of the parts, so a lacing to the ankle, as a lacing about the chest, may feel comfortable and give a sense of support for the time being, but, in either case, will, in the long run, only produce absorption and weakness. The ankle joint should be left entirely without ligature, without any pressure, and by exercise be developed into a self-supporting institution. If this were the place, I would give special directions for bathing the ankle joints in cold water, morning and evening, and rubbing them hard with the naked hands, if they are weak and need special support. RUBBER BOOTS AND SHOES.