First Course in General Science

This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1916 edition. Excerpt: ...treatment of both tuberculosis and pneumonia. In fact, the patient suffering from either of these diseases frequently lives and sleeps continually in the open air. There is every reason for believing that such open-air living is Fig. 230--Window tent, folded up. (Courtesy of Dr. S. A. Knopf.) equally beneficial as a preventive measure. Well informed people have become convinced of this fact and many modern houses are being constructed with open-air living rooms, with sun rooms, and with open-air sleeping rooms. It is usually an inexpensive matter to construct a sleeping porch such as shown in Fig. 228. Many houses have porches which may be easily screened in for living purposes. Many devices have been perfected, especially for the accommodation of tubercular patients who can not afford to build sleeping porches or who live in rented houses. Most of these devices are fitted to the open window in such a manner as to permit the patient to breathe the cool, fresh, outside air while resting and sleeping. Figures 229 and 230 show two views of one of these devices, first, when in use, and second, when folded up out of the way. This window tent has a celluloid window which enables the patient to see all that takes place in the room. Such devices are very useful for several reasons: (1) They are easily attached to, and removed from any window; (2) they are economical because they prevent the loss of any considerable amount of heat from the room; (3) in case of severe sickness, the attending nurse and the members of the patient's family are able to use the room with comfort even in the severest weather; at the same time the patient really lives in outside air. CHAPTER VI VENTILATION I. PRINCIPLES OF VENTILATION 338. Need of Ventilation.--While the...