Usually within an hour, a second dose of scopolamin is given, while the application of so-called "memory tests" serves to indicate whether it is advisable to administer additional injections. Some leading advocates of this method claim that the majority of the unfavorable results attendant upon "twilight sleep" are the direct result of failure to control the dosage of the drug by these "memory tests;" and they call attention to the large percentage of "painlessness" as proof of probable overdosing. If the patient's memory is clear and she is not yet under the influence of the drug, a third dose is soon given. If, however, the patient is in a state of amnesia (lack of memory), this third injection is not commonly given until about one hour after the second injection. The amount of amnesia present is used as a guide for repeated injections at intervals of one to one and a half hours. As a rule, the morphin is not repeated. It must be evident that the success of such a method of anesthesia must depend entirely upon thoroughgoing personal supervision of the individual patient by a properly trained and experienced physician; and it is for just these reasons that "twilight sleep" is destined to remain largely a hospital procedure for a long time to come. Experience has shown that those cases of "twilight sleep" that are not under the influence of scopolamin over five or six hours do vastly better than those under a longer time. When employed too long before labor this method seems to favor inertia and thus tends to increase the number of forceps deliveries. The number of injections may run from one to a dozen or more, and patients have come through without accident with fifteen or more doses, running over a period of twenty-four hours. THE CLAIMS OF "TWILIGHT SLEEP" While "twilight sleep" as a method of anesthesia is not altogether new, many of the claims made for it by recent advocates are more or less new; and, to enable the reader clearly to comprehend both the advantages and disadvantages of this method, both the favorable and unfavorable facts and contentions will be summarized in this connection. The favorable claims made for "twilight sleep" are: 1. That eighty to ninety per cent of all women who use this method can be carried through a practically painless labor. 2. That there is practically no danger to the mother (some degree of danger to the child is admitted by most of its champions) other than those commonly attendant on the older and better known methods in general use. 3. That "twilight sleep," being almost exclusively a hospital procedure, would result in more women going to the hospital for their confinement--if it were used more; and would, therefore, tend to bring about more careful supervision and individual care on the part of the attending obstetrician.