Our home physician: a new and popular guide to the art of preserving health and treating disease; with plain advice for all the medical and surgical emergencies of the family . LESPERANCE VENTILATOR. Interior view. The arrows indicate the direction of the air, through thecharcoal and wire gauze, into the CIRCULATION OF AIR IN ROOM. Advantage of fireplace illustrated. The icarm air, being lighter, rises to the top of the room, and the cold air falls to th£ bottom. (From Leeds work on Ventilation.) EFFECTS OF ANTHRACITE COAL ON THE HEALTH. 265ADVANTAGES. In conclusion, I have no hesitatio
Our home physician: a new and popular guide to the art of preserving health and treating disease; with plain advice for all the medical and surgical emergencies of the family . LESPERANCE VENTILATOR. Interior view. The arrows indicate the direction of the air, through thecharcoal and wire gauze, into the CIRCULATION OF AIR IN ROOM. Advantage of fireplace illustrated. The icarm air, being lighter, rises to the top of the room, and the cold air falls to th£ bottom. (From Leeds work on Ventilation.) EFFECTS OF ANTHRACITE COAL ON THE HEALTH. 265ADVANTAGES. In conclusion, I have no hesitation in stating that I find fromexperience that the ventilator, placed in any building accordingto the directions given, will ventilate the building with fresh pureair without producing any sensible draught; and as the same prin-ciple is applied in the adaption of it to railroad cars, if it is usedin the manner pointed out, and as shown in the model, the car willbe thoroughly ventilated without any sensible draught. EFFECTS OF ANTHRACITE COAL ON THE HEALTH. Nearly all nervous persons who have lived much in close roomsheated by coal have observed a feeling of depression, headache, orother unpleasant symptoms, which they have attributed to the stoveor furnace. Recent experiments have shown that carbonic oxi
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