File:Physiology, hygiene and sanitation, an elementary textbook of physiology, with special attention given to hygiene and sanitation (1919) (14765160635).jpg

Identifier: physiologyhygien00heiz (find matches)
Title: Physiology, hygiene and sanitation, an elementary textbook of physiology, with special attention given to hygiene and sanitation
Year: 1919 (1910s)
Authors: Heizer, W. L. (W. Lucien), b. 1880
Subjects: Physiology Hygiene Sanitation
Publisher: Louisville, Ky., C.T. Dearing Printing Co., Incorporated
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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Fig. 80.—Showing the best wayof ventilating by placing theinlet midway between theceiling and floor and the out-let at the same end of theroom near the floor. Many times pupils who are dull and listless becauseof the foul air in a close room become at once alert andperform their duties much better. The sloping board may be employed in many schoolrooms, and the upper sashes should be lowered a fewinches. In extremely cold weather it may be necessaryto close the space above the upper sash and use only thetight-fitting board below the lower sash. In very cold weather, air enters in good quantitiesthrough cracks in walls and around windows and doors. Sleeping Room Ventilation. People have begun to 184 PHYSIOLOGY, HYGIENE AND SANITATION learn that fresh air, like pure water, is one of naturesrichest blessings to maintain health and prevent disease,and that both are free for their seeking. For many years,
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Fig-. 81.—An outdoor sleeping- porch connected by a stairway to adown-stairs living room, screened and protected by an over-hang-ing roof from sun and driving rains. The six-foot elevation andthe wainscoting protect a female occupant from fear of intruders.The screen on hinges at the left side allows bed clothing to besunned and aired. The space below the wainscoting preventsthe collection of carbon dioxide gas and insures a free circulationof air. In extremely cold weather or in a driving rain or a drift-ing snow, curtains may be placed around part of the porch. Thecost of such a porch need not exceed $25.00. it was taught that night air was dangerous and onewas more liable to be ill if sleeping was done in night air.Now we know that to sleep out-of-doors at night, prop- VENTILATION 185 erly screened from mosquitoes and protected from cold,is the ideal way to furnish the body cells with oxygenwhile the body is resting and being rebuilt after thedays work. Sleeping Porches are now b

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