The cold bath, and especially the shower bath, is a good means of fortifying the body against cold air. When we take a cold bath in the morning, if the sense of cold does not remain long, and is followed by a glow of warmth, the bath is sure to do good. If, however, after the bath we suffer headache, and continue to be chilly and languid or uncomfortable, it should at once be given up as useless and dangerous. EFFECTS OF THE SEASON UPON HEALTH. In this country, generally, catarrh and coughs and pectoral complaints of all kinds, are most apt to prevail in the winter and spring months, while bowel complaints are more numerous and distressing in the summer. The mucous membranes of the air passages sympathize with the skin under the agency of external cold; those of the stomach and intestines under that of heat. The thoracic disorders which commence or grow worse in the winter are often fatal, and there are various other maladies that are aggravated by cold, so that the mortality of winter is greater than that of summer. Bowel complaints are more prevalent at the latter part of summer or early fall, when moderately cold days succeed a long period of hot weather, the high diurnal temperature being the predisposing cause, and the cold exciting or bringing on the disease. I shall not refer to other causes of disease except to say that if two persons marry each other who have a hereditary predisposition to disease, their children, if they have any, will probably not be healthy. CHAPTER II. SYMPTOMS OF DISEASE, WITH INSTRUCTION TO NURSES. Symptoms are the signs by which we know that disease is present. Every circumstance happening in the body of the sick person capable of being perceived by himself or others, which can be made to assist our judgment concerning the seat or nature of the disease, its probable course and termination or its proper treatment, is a sign or symptom. These phenomena are the evidence upon which the whole art of the physician proceeds. It is important that the nurse should know how to note the symptoms, not only that she may know how and report to the doctor changes that occur in his absence, but that she may be able also to minister to those who are suddenly attacked with sickness, and to judge whether in cases of slight indisposition it is necessary to send for a physician.