408 
POPULAR SCIENCE REVIEW. 
dwellings. In olden times ventilation must have been far better 
than it is nowadays, when our demand for light is followed by 
so large a consumption of our breathing-air. And why, again, is 
there this distinction between the fire and the gas ? The fire uses 
up air, but it also acts on the vacuum principle, and produces a 
draught of fresh air in the room ; 
but the gas does n ot. What, then, 
is the remedy ? Convert the gas 
into a fire, provide it with a 
chimney to convey out the pro- 
ducts of combustion, and compel 
it thus to ventilate the room as 
thoroughly as the fire does. 
Many methods of doing this 
have been suggested, but the 
one which has been found most 
satisfactory in operation, and of 
which we ourselves can speak in 
high terms of praise, is that 
which has been invented by Mr. 
Eicketts, and is known as the 
Ventilating Globe Light. We 
have only one fault to find with 
it, and that is its costliness ; 
but we confess we cannot see 
how, under existing conditions, 
it could be sold at a cheaper 
rate. The accompanying dia- 
gram explains its construction. 
It consists of an Argand burner, 
enclosed in a globe of large pro- 
portions, whose only aperture for 
admission of air is at the top. A shows the burner and 
chimney in section, and the letters D D and the arrows 
indicate the mode of admission of air from the room. The gas- 
pipe is enclosed in a tube of larger dimensions, B B, which 
passes from, the portion of the globe immediately above the 
chimney of the burner to the ceiling of the room. Here it 
communicates with a shaft, which passes under the joists of the 
room above, and discharges the foul air into the chimney. 
The letters C C indicate a funnel, whose mouth communicates 
also with a portion of the shaft, and which draws off the heated 
air of the room, throwing it — as in the case of the products of 
combustion from the burner — into the chimney. Thus far, Mr. 
Eicketts 5 contrivance is theoretically excellent. Our examination 
of it in these respects confirms the inventor’s anticipations ; it 
not only carries off the products of its own combustion through 
VENTILATING GLOBE-LIGHT. 
