tmo-sphere a special supply of air for the gas-burners in awell ventilated one. This, however, necessitates theuse of a form of gas-light which guards the fresh air M 2 164 Sanitary Arrangements for Dwellings. for its own separate use, and fortunately such a thingis in the market. This ventilating… … for the purpose, and which avoids all chance of charredfragments of paper or wick falling into the globe, anupward current is created in the inner tube, and, asthis tube becomes heated, the air in the outer tube isalso rarefied. The effect of this is to cause a movementof the vitiated air of the…
