 | Robert Simpson - 1826 - 614 pages
...degree of ventilation to the rooms : it is however strongly aided in this effect by a similar turncap a short distance from the building, communicating...air is constantly passing through the same.* " The committee, before the erection began, directed their attention to the means of obtaining the best plan... | |
 | Stephen Glover - 1843 - 284 pages
...degree of ventilation to the rooms ; it is however strongly aided in this effect by another turncap, a short distance from the building, communicating...of air is constantly passing through the same. The committee, before the erection began, directed their attention to the means of obtaining the best plan... | |
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... turncap a short distance from the building, communicating with it by a subterraneous culvert, the opening from the former one is, by the power of a vane presented in a direction opposite to the wind, while the latter is by a similar contrivance always... 