Much as we must regret that the warnings of Holmes and of Tarnier passed unheeded; lamentable as may be the blindness of the generation of Semmelweiss to the truths revealed by his research, it is not surprising that such radical teaching met with a hostile reception. As we measure time in retrospect from the vantage ground of to-day, the three to four decades required for full acceptance of their revolutionary doctrines seem a brief span. Antiseptic methods would not have prevailed so quickly as they did, had not the same epoch which gave us a Pasteur also given a surgeon with a receptive mind, ready to seize and apply the discoveries of the French genius. This was the great service of Joseph Lister. Impressed with Pasteur's studies on fermentation, Lister saw an analogy between this process and the putrefaction of wounds, a condition which he was eager to prevent. He had reason to believe that carbolic acid would check decomposition, and he employed a weak solution of it in the treatment of wounds; later he devised a "carbolic spray," by means of which when his operations were performed the atmosphere round about might be sterilized.

It is but a short step from antiseptic operations to our own era of aseptic surgery, and that a step in the direction of simplicity. Now we know that the sterilization of the air is rarely necessary and have dispensed with Lister's elaborate apparatus. Furthermore, and of far greater moment, experience has taught that the destruction of bacteria before they have opportunity to come in contact with the wound is more effective than efforts to kill them as they approach or after they have invaded the tissues. Initial freedom from bacteria is the ideal of asepsis; to secure it, the modern surgeon is ever watchful of the cleanliness of his hands, his instruments, his dressings, and of the site of operation or whatever may come near it.

The importance of the changes wrought by the adoption of aseptic methods requires no emphasis, for the marvels of modern surgery are even more impressive to laymen than to the medical profession. Everybody now understands that strict cleanliness is indispensable to the success of a surgical operation. But the general public has not fully awakened to the same profound necessity in connection with childbirth, although it was child-bed fever that called forth the observations and experiments upon which modern surgical technique rests.

Although most obstetrical patients appreciate the fact that there is an advantage in sterilized dressings and sanitary surroundings, few realize the risk they run without them. One must know the mournful history of the past to be adequately impressed with that danger, for we no longer see the epidemics of childbed fever which formerly swept over communities, sacrificing ten of every hundred women as they became mothers. Precaution is no less necessary on that account; the scourge would be rampant again if the reins were loosened.

Most instances of puerperal infection are, it is true, referable to lack of care. Nevertheless, the complication develops now and then where all precautions have been conscientiously observed. Under such conditions the infection will in all likelihood be a mild one, and a tedious convalescence usually proves its most disagreeable feature. Such stringent preventive measures as are now practiced in many hospitals have reduced the frequency of infections to the point where only one fatal case, or even less, occurs in a thousand deliveries. These rare cases remind us that vigilance must never be relaxed, and that patients who are confined at home require just as much care as those in hospitals, where conditions are the best to prevent infection and the complications, which follow.

The first essential toward the avoidance of infection in obstetrical cases is clean dressings. Naturally, these should be clean to the sight, but it is in invisible dirt that serious danger lurks; bacteria are the causative agents of this disease. Experiments have taught the bacteriologist that disease-producing organisms are killed in half an hour when subjected to a high atmospheric pressure and the temperature of steam. Special apparatus has been constructed for carrying out the procedure. It is unnecessary for our purposes, however, since the essential conditions may be secured, though with less convenience, in any kitchen. If a prospective mother finds it awkward to do the sterilizing at home, and her nurse is unable to take charge of the matter, she may arrange with a local hospital or the nearest nurses' directory to sterilize her dressings. Yet a very little ingenuity suffices to do the work at home with perfect satisfaction. Installments of the smaller bundles may be sterilized in a galvanized bucket. To do this place an inverted bowl, with a depth of three to four inches, at the bottom, and pour in water until the bowl is almost covered. A breakfast plate rests on the bowl, and upon this the dressings are stacked; a second larger plate which fits the top of the bucket is utilized as a lid to close in the sterilizing chamber. This will not accommodate the larger packages; a more satisfactory method for all of them is to use a wash-boiler in which has been swung a muslin hammock.

To arrange the latter form of home sterilizer, cut an oblong piece of unbleached muslin large enough to sink far down into the boiler and run a drawing-string of stout cord about the edge. Cover the bottom of the boiler with several inches of water; tie the hammock in place, passing the cord beneath the handles of the boiler to hold the muslin securely. Pack in the dressings, which have been wrapped in appropriate bundles; put the lid in place, thus closing the sterilizing chamber, and leave the dressings exposed to the steam for at least half an hour. After the operation has been completed, the bundles are taken out of the boiler and allowed to dry in the air. They must not be opened until the occasion for which the supplies were prepared arrives; awaiting this event, they are laid away in a convenient closet or drawer.

A word of caution may be added concerning a method of sterilization employed at home more frequently, perhaps, than any other. According to this procedure, the supplies are wrapped in paper, thrust into a hot oven, and left there until the paper is scorched. From the standpoint of economy as well as of thoroughness, this method is likely to prove unsatisfactory. Frequently, the dressings themselves are scorched; I have known patients to ruin several installments of their supplies in this way. Moreover, dry heat is not so trustworthy as steam for sterilizing purposes.

Judicious management means the preparation of the supplies necessary for confinement before turning to the selection of the infant's outfit. Ordinarily, both these tasks should be finished by the end of the eighth month, and final arrangements for the approaching delivery will then claim attention. If the patient expects to remain at home, she must decide which is the best room to occupy; she will wonder how it ought to be equipped, and she will be anxious to learn what personal preparations are advisable at the beginning of labor.

Intelligent answers to these questions are important. A patient should request the physician to criticize her plans when he pays the preliminary visit four to five weeks prior to the expected date of confinement. If she has acted unwisely in any respect, he will point it out, and may suggest changes which will enable her to employ to the best advantage the resources at hand.