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" The air of our London rooms is loaded with this organic dust, nor is the country air free from its pollution. However ordinary daylight may permit it to disguise itself, a sufficiently powerful beam causes the air in which the dust is suspended to appear... "
Notices of the Proceedings - 6. oldal
szerző: Royal Institution of Great Britain - 1872
Teljes nézet - Információ erről a könyvről

Scientific Opinion: A Weekly Record of Scientific Progress at Home ..., 3. kötet

1870 - 586 oldal
...full, if it be inverted, the gas passes upwards like a black smoke among the illuminated particles. The air of our London rooms is loaded with this organic...in the first instance, without repugnance place the month at the illuminated focus of the electric beam and inhale the dirt revealed there. Nor is the...

The Medical times and gazette, 1. kötet

1870 - 746 oldal
...in future, for destroying or intercepting contagia. "The air of our London rooms," says Dr. Tyndall, "is loaded with this organic dust ; nor is the country...air in which the dust is suspended to appear as a scmisolid rather than as a gas. Nobody could, in the first instance, without repugnance place the mouth...

Scientific Addresses

John Tyndall - 1870 - 82 oldal
...full, if it be inverted, the gas passes upwards like a black smoke among the illuminated particles. The air of our London rooms is loaded with this organic...itself, a sufficiently powerful beam causes the air in (25) which the dust is suspended to appear as a . semi-solid rather than as a gas. Nobody could, in...

Nature, 1. kötet

Sir Norman Lockyer - 1870 - 694 oldal
...black smoke among the illuminateli particle-. The air of our London rooms is loaded with this organu nor is the country air free from its pollution. However...daylight may permit it to disguise itself, a sufficiently | beam causes the air in which the dust is suspended to ap; a semi-solid rather than as a gas. Nobody...

The Phrenological Journal and Life Illustrated, 50-51. kötet

1870 - 936 oldal
...of the world, that the dust of our nir was, in great part, inorganic and non-combustible. Tbe air of London rooms is loaded with this organic dust, nor...country air free from its pollution. However ordinary .day light may permit it to disguise itself, a sufficiently powerful electric beam causes the air in...

Fragments of Science for Unscientific People: A Series of Detached Essays ...

John Tyndall - 1871 - 436 oldal
...full, if it be inverted, the gas passes upward like a black smoke among the illuminated particles. The air of our London rooms is loaded with this organic dust, nor is the country air free from its presence. However ordinary daylight may permit it to disguise itself, a sufficiently powerful beam...

Fragments of Science for Unscientific People: A Series of Detached Essays ...

John Tyndall - 1871 - 438 oldal
...of our London rooms is loaded with this organic dust, nor is the country air free from its presence. However ordinary daylight may permit it to disguise itself, a sufficiently powerful beam causes dust suspended in air to appear almost as a semi-solid. Nobody could, in the first instance, without...

Practical lessons in the nature and treatment of the affections produced by ...

John Morgan - 1872 - 370 oldal
...air is not free from it. A sufficiently powerful beam of light causes the atmosphere in which this dust is suspended to appear as a semi-solid rather than as a gas. " Nobody could, without repugnance," says Professor Tyndall, "place his mouth at the illuminated focus of the electric...

Proceedings of the American Philosophical Society Held at ..., 12-13. kötet

American Philosophical Society - 1873 - 626 oldal
...particles floating in the air of London rooms being thus proved to be of organic origin." (p. 279,) "The air of our London rooms is loaded with this organic dust ; nor is the country air free from its presence." (p. 285.) And hence, no doubt, the ova were hatched by Dr. Bastían, or the germs made to...

Proceedings of the American Philosophical Society Held at ..., 12-13. kötet

American Philosophical Society - 1873 - 662 oldal
...particles floating in the air of London rooms being thus proved to be of organic origin. ' ' (p. 279,) "The air of our London rooms is loaded with this organic dust ; nor is the country air free from its presence." (p. 285.) And hence, no doubt, the ova were hatched by Dr. Bastian, or the germs made to...




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