Dr. Evans' How to keep well; (1917) (14790401433)

Identifier: drevanshowtokee00evan (find matches)

Title: Dr. Evans' How to keep well;

Year: 1917 (1910s)

Authors: Evans, William Augustus, 1865- (from old catalog)

Subjects: Medicine, Popular Hygiene Sanitation

Publisher: New York, Pub. for Sears, Roebuck and co. by D. Appleton and company

Contributing Library: The Library of Congress

Digitizing Sponsor: The Library of Congress

Text Appearing Before Image:

at are under 50. Thereis no climate where people live which has a humidity as low as this. On the other hand, if the air in a room has a humidity over 70 it isdistinctly bad. My contention is that healthy air is air which is not toowet and not too dry. The humidity of inside air must not be more thanforty points lower than that of the outside. You have been fortunate in escaping colds but it would not be possibleto draw any conclusion as to why you have escaped them without knowingmore about you and also more about the humidity in your house. For allthat your letter conveys the humidity may be pretty high. 1204 VENTILATION—HEATING—HUMIDITY Good Compromise Humidity.—J. W. S. writes: We have a pan ofwater two and one-half by six feet in each fan of our schoolroom, whichis kept boiling by means of steam pipes, and all this vapor goes alongwith the air into the schoolrooms. We are thus able to increase the humid-ity in our schoolrooms from 12 to 18 per cent above what it would be if

Text Appearing After Image:

Louisiana Health Almanac.Fig. 489.—Kentucky Type Privy with Septic Tank. the vapor were not added. On the cold, clear days the highest per centof humidity we are able to get by this method is about 1/.5. Will you kindlytell me what should be the per cent of humidity in our schoolrooms? I be-lieve we can increase our humidity by increasing the size of our evaporatingpans in our fan rooms. Eeply.—The humidity should be 70 but 45 is a very good compromise.Your walls would sweat disagreeably if you went much higher; that is, ifyou heat by hot air introduced on the inside wall. Shallow pans of waterkept boiling by steam pipes constitute an excellent method of raisinghumidity. You are doing well. Radiators and Humidity.—M. E. R. writes: Will you kindly explainhow you fixed your radiator to keep up the humidity, a matter to which HUMIDITY 1205 you made reference some days since? We have hot water heat, and haveseveral galvanized iron cans that hang on the hack of the radiators, hold-in

Dr. Evans, wie man sich gut hält 1917 Buchillustrationen Medizin Biologie Hygiene Kentucky zentrale Kreuzung Hygiene Anatomie hohe Auflösung Urheberrechtsfreie medizinische Bilder Bilder aus dem Internetarchiv Kongressbibliothek Public Domain Anatomie Bilder

1917

Library of Congress

http://commons.wikimedia.org/

public domain