 | 1880 - 546 Seiten
...ceiling of one room and the floor of the room above, provided that this space can be well ventilated. This brings us naturally to say a little about lighting....considered that gas is more injurious than lamps or candles, aiid so it is when the quantities of light are not compared, but with the same quantity of... | |
 | 1880 - 930 Seiten
...well ventilated. This brings us naturally to say a little about lighting. Candles, lamps and gas make the air impure. It is calculated that two sperm candles,...considered that gas is more injurious than lamps or candles, and so it is when the quantkies of light are not compared, but with the same quantity of light,... | |
 | William Henry Corfield - 1880 - 178 Seiten
...mortality from consumption among these people. It is found that two hard candles, or one good oil lamp, consume as much oxygen and give out as much carbonic acid as one man, so that a man sitting in a room with two candles requires twice as much air as he would were... | |
 | 1881 - 566 Seiten
...that two sperm candles, or one good oil lamp, render the air about as impure as one man's respiration does, whereas one gas burner will consume as much...commonly considered that gas is more injurious than lamps and candles, and so it is, when the quantities of light are not compared ; but with the same quantity... | |
 | ERNEST HART - 1882 - 558 Seiten
...that two sperm candles, or one good oil lamp, render the air about as impure as one man's respiration does, whereas one gas burner will consume as much...commonly considered that gas is more injurious than lamps and candles, and so it is, when the quantities of light are not compared ; but with the same quantity... | |
 | International health exhibition, 1884 - 1882 - 564 Seiten
...that two sperm candles, or one good oil lamp, render the air about as impure as one man's respiration does, whereas one gas burner will consume as much...commonly considered that gas is more injurious than lamps and candles, and so it is, when the quantities of light are not compared; but with the same quantity... | |
 | Edward Cookworthy Robins - 1887 - 486 Seiten
...sperm candles, or one good oil lamp, render the air about as impure as one man's respiration docs, whereas one gas burner will consume as much oxygen...considered that gas is more injurious than lamps or candles ; and so it is, when the quantities of light are not compared ; but with the same quantity... | |
 | Sir Banister Fletcher, Herbert Phillips Fletcher - 1910 - 426 Seiten
...eighteenth century, but since then its manufacture has been much improved, although it has been stated that one gas burner will consume as much oxygen and give out as much carbonic acid as six men. Gas is supplied at varying pressures, and hence it is advisable to have a Governor fixed near... | |
 | Sir Banister Fletcher - 1911 - 320 Seiten
...lime process of purification, however, alleviated this nuisance, and allowed the use of naked flames. One gas burner will consume as much, oxygen and give out as much carbonic acid as six men. Illumination. — The standard method of measuring the power of illuminating by gas is a spermaceti... | |
 | Sir Banister Fletcher - 1921 - 316 Seiten
...lime process of purification, however, alleviated this nuisance, and allowed the use of naked flames. One gas burner will consume as much oxygen and give out as much carbonic acid as six men. Illumination. — The standard method of measuring the power of illuminating by gas is a spermaceti... | |
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... does, whereas one gas burner will consume as much oxygen and give out as much carbonic acid as five or six men, or even more. This is why it is commonly considered that gas is more injurious than lamps... 