after awhile remove it for the purpose of ascertaining what progress has been made. If the os uteri be still undilated, and the hæmorrhage going on, the plug must be returned. It is however by no means a remedy to be used in every case of hæmorrhage, for in most instances the treatment already mentioned will be sufficient to keep it within safe bounds. Where, however, the flooding has become very alarming, and the os uteri still remains firm and but little dilated, the plug will prove an invaluable remedy; and so long as the os uteri remains in this condition, and the uterus itself shows no disposition to contract, we may safely trust to perfect rest, cold applications, and the plug. Opium, which in the early stages of the attack is so useful in keeping off contractions of the uterus, will now for this very reason be contra-indicated; it will diminish the power of the uterus, and interfere with the process of expulsion. The acetate of lead has been extolled as a powerful remedy for stopping hæmorrhage, more especially by Dr. Dewees, who states that "in many cases it seems to exert a control over the bleeding vessels as prompt as the ergot of rye does upon the uterine fibre." (_System of Midwifery_, § 1045.) We have never tried this remedy in premature expulsion, having found the means of treatment above mentioned sufficient; the authority however of such an author demands respect, the more so as it is known to be a valuable remedy in certain forms of menorrhagia. Where a considerable quantity of blood has been lost, and the patient is much reduced, we must endeavour not only to excite the contractile power of the uterus, but also to assist this organ in the expulsion of its contents: syncope in these cases is a dangerous symptom, because, as the patient is in the horizontal posture, it will seldom be induced except by a serious loss of blood; although we must not therefore allow her to flood until she faints, still, however, when the pulse has become considerably affected, the os uteri dilates more readily, and in this way facilitates the expulsion; we must no longer trust to the plug, for the whole system is beginning to sympathize and grow irritable, the pulse grows quicker and smaller, and the stomach rejects its contents. Although vomiting as well as syncope are symptoms which we cannot safely wait for, they are nevertheless means which nature adopts to relieve herself from the impending danger: by syncope she not only produces greater dilatability of the os uteri, but also, by causing a temporary cessation of the heart's action, she favours the coagulation of blood, and thus checks the discharge; whereas, by the involuntary effort of muscles which she excites by the action of vomiting, the ovum is more speedily separated and expelled.