In TYPHUS FEVER the temperature reaches its height, 104° or 105°, within thirty-six hours. It continues at that height, with morning remissions of one-half degree, till the eleventh or thirteenth day, when it rapidly falls to the normal; a sweat or a long sleep ushering in the favorable termination. SCARLET FEVER. If a child is suddenly taken ill with a chill, vomitings, very rapid pulse, and the thermometer records 105° or more, very early in the disease, it denotes scarlet fever; and from this sign alone, even without any sore throat or eruption, a diagnosis may be made. This disease may very frequently go on well without any danger till the eruption subsides, but danger arises from exposure of the child to cold any time during the subsequent four weeks. HYSTERIA. There may be pain perhaps in the bowels, abdominal tenderness, and vomiting; or there may be symptoms of inflammation in some other part; if the thermometer does not register more than 98½° it is probably hysteria. Assafœtida, valerian, and such remedies will probably cure. APOPLEXY. In this disease the thermometer soon after the attack shows a temperature of only 97°, and lower still if there should be a second effusion to still more compress the brain. On the contrary, in a fully developed case of sunstroke, the thermometer will not record less than 107°. It would be a good thing if every nurse and every mother kept a clinical thermometer. CHAPTER II. EMERGENCIES, ACCIDENTS, SUDDEN SICKNESS. The diseases last named were there mentioned because their distinctive character could be determined by the thermometer. They are, however, examples of the kind of cases that I design now to speak of particularly; where there is apparent cause for alarm, and where there is apparent necessity that something should be done immediately. These cases demand the services of a physician, and my design is only to instruct you what to do before the doctor arrives; or rather I should say, the instructions that I give are not intended to supercede medical advice, though some cases may be of a kind in which little or nothing can be done. These emergencies are of every variety, and I shall bring the different kinds before you as fully as I can. Ordinarily it is not at first apparent what the real malady is. We will suppose that during the heat of summer a man drops down unconscious. At first no one knows whether it is apoplexy or SUNSTROKE. Do not get excited and do things that are rash; if you do not know what ought to be done, do nothing; if you are not excited you may at least use what knowledge you have acquired.