COMFORT THERMOMETER.

Clutha Leader, Volume XXXIX, Issue 57, 28 February 1913, Page 1

COMFORT THERMOMETER.

f THE AIR OF A ROOM. A special form of thermometer, to indicate' when a room is comfortably aired, as well as at a healthy temperature, was shown bv Professor Leonard Hill; Professor of Physiology at the London Hospital Medical College, in an address lately to the London County Council Teachers' Conference. It is a metal vessel, containing water at a temperature of 102deg., with a thermometer immersed in the water. Around the vessel in a piece of stocking material, kept moist by a wick that dips into a small tube. Observation is carried out as follows: The instrument is put into a properly ventilated room, and tho experimenter observes the time—say about five minutes—which it takes to cool from 102deg. to l)7deg. He then takes it to the room he wants to test and again observes the time for the same drop in temperature. If the cooling takes 10 minutes it means that tho movement or air is not sufficient. In a badly ventilated room it may take as much as one hour. Talk into a Handkerchief.

Anyone with a cold, said Professor Hill incidentally, should cough, sneeze, and even talk into a handkerchief. It should bo an offence against society to do otherwise. In fact, if a man's not a bad cold, do not let him talk! Deadly Sneeze. Professor Ijconard Hill's dictum was supported by auothor prominent London physician. "Colds kill tens of thousands every year," the doctor pointed out, "and yet we persist in taking no special precautions to escape them. We go to great troubles to prevent the spread of diphtheria or scarlet fever or smallpox, but the person with a cold, who is scattering deadly microbes everywhere, wo treat as perfectly harmless. "1 thoroughly agree that during the sneezing, coughing stage tho person with a cold should be isolated, so that tho germs lie is constantly scattering may not be breathed in by his neighbors."