In the child which has been partly or altogether brought up by hand, or who is of a feeble and delicate constitution, or imbued with any hereditary taint, the process of dentition will be attended with more or less difficulty, and not unfrequendy with danger. SYMPTOMS.--The symptoms of difficult dentition are of a much more aggravated description than those which attend the former case; and it is right that a mother should, to a certain extent, be acquainted with their character, that she may early request that medical aid, which, if judiciously applied, will mitigate, and generally quickly remove them. Difficult dentition will be attended with painful inflammation and swelling of the gum, which is hotter, of a deeper red, than natural, and intolerant of the slightest pressure. There is often great determination of blood to the head, which a mother may recognise by the cheeks being red, hot, and swollen; the eyes red, irritable, and watery; and the saliva running from the mouth profusely. The fever is great, and the thirst extreme. The child is at one time restless and irritable, and at another heavy and oppressed: the sleep will be broken, and the infant frequently awake suddenly and in alarm from its short slumbers. Such are the chief symptoms of difficult teething, and which will be present to a greater or less degree. TREATMENT.--As most of the above symptoms are induced by the painful tension of the gum, it would seem that the most rational mode of attempting their relief is by freely lancing the swollen part. Great prejudices, however, still exist in the minds of some parents against this operation. They think it gives great pain, and, if the tooth is not very near, makes its coming through the gum subsequently the more difficult. With regard to the first objection, the lancet is carried through the gum so quickly, that this is hardly possible; and the fact that the infant will often smile in your face after it is done, although previously crying from pain, is sufficient evidence that it is not a very painful operation. In reference to the second, that the scar which ensues, opposes, by its hardness, the subsequent progress of the tooth, it is quite groundless; for cicatrices, like all other new-formed parts, are much more easily absorbed than the original structure. Of the practical utility and perfect safety of this operation we have ample proof in its daily performance with impunity, and in the instant relief which it often affords to all the symptoms. Mere scarifying the gums is sometimes all that is required, and will afford great relief. This operation, therefore, should not be opposed by the mother. She, at the same time, should be acquainted with its precise object, lest the speedy return of the symptoms, and the non- appearance of the expected tooth, might tend to bring the operation of lancing the gums into disrepute.