The Intellectual Observer, Volume 9Groombridge and Sons, 1866 |
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Página 4
... present condition of a Cornish mine : - " The only air - engine found working in one big mine was a piston in a rough deal box ; a panting short - armed little boy pulled and pushed at the cross handle . The air was close where he ...
... present condition of a Cornish mine : - " The only air - engine found working in one big mine was a piston in a rough deal box ; a panting short - armed little boy pulled and pushed at the cross handle . The air was close where he ...
Página 6
... present century , the only means of ascertaining the accumulation of fire - damp to a dangerous extent was at the almost certain risk of igniting the whole ; while the dim light afforded by the steel - mill was the only one with which a ...
... present century , the only means of ascertaining the accumulation of fire - damp to a dangerous extent was at the almost certain risk of igniting the whole ; while the dim light afforded by the steel - mill was the only one with which a ...
Página 9
... present form . Danger is , however , reduced to a minimum , because in the event of fracture of the glass tube , the vacuum is destroyed , the air rushes in , and the lamp is immediately extinguished . We may then conclude that all mere ...
... present form . Danger is , however , reduced to a minimum , because in the event of fracture of the glass tube , the vacuum is destroyed , the air rushes in , and the lamp is immediately extinguished . We may then conclude that all mere ...
Página 14
... into the colliery by the viewer , in his pocket , and employed at any mo- ment to determine the amount of dangerous gas present in the air . FIG . 5 . When diffusion has been completed , that is , when 14 Life and Death in our Mines .
... into the colliery by the viewer , in his pocket , and employed at any mo- ment to determine the amount of dangerous gas present in the air . FIG . 5 . When diffusion has been completed , that is , when 14 Life and Death in our Mines .
Página 15
... present in the air of mines , Mr. Ansell varies the form of his apparatus , the most convenient form for that purpose being that of a small aneroid barometer for the waistcoat pocket . The mercurial barometer , when fitted with the ...
... present in the air of mines , Mr. Ansell varies the form of his apparatus , the most convenient form for that purpose being that of a small aneroid barometer for the waistcoat pocket . The mercurial barometer , when fitted with the ...
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The Intellectual Observer: Review of Natural History, Microscopic ..., Volume 6 Visualização integral - 1865 |
Palavras e frases frequentes
achromatic acid amount aniline animal aperture apparatus appearance atmosphere ball beautiful birds body bright carbon carbonic acid centre colour combustion cone Connemara considerable contains crater curious dark Davy lamp Dawes diameter disc distance division eggs electric equal eruption Eucalyptus existence feet fish force genus glass globe gun-cotton heat inches inner edge island Lassell lava less light matter means microscope miles minute muscle nearly nebula nitro-glycerine noticed objects observed obtained pass pileus pine grosbeak plants plate pole portion position present probably produced Professor projection quantity remarkable result ring rocks Roman round Roundstone Saturn Secchi seen side silica solution species specimens stars stone substance supposed surface T. W. WEBB telescope temperature Thor's Cave tint tion transparent trees truffles tube vacuum tube vapour visible volva waxwing white-headed woodpecker woodpeckers
Passagens conhecidas
Página 122 - So all day long the noise of battle rolled Among the mountains by the winter sea.
Página 299 - I mean stock to remain in this country, to the United States of America, to found at Washington, under the name of the Smithsonian Institution, an establishment for the increase and diffusion of knowledge among men.
Página 151 - The Treasury of Botany, or Popular Dictionary of the Vegetable Kingdom ; with which is incorporated a Glossary of Botanical Terms.
Página 37 - It is true that the serpent has no limbs, yet it can outclimb the monkey, outswim the fish, outleap the jerboa, and, suddenly loosing the close coils of its crouching spiral, it can spring into the air and seize the bird upon the wing: all these creatures have been observed to fall its prey.
Página 156 - Dr. Carpenter then combated the opinion advanced by Professor King and Dr. Rowney in the preceding paper, and stated that even if the remarkable dendritic passages hollowed out in the calcareous layers, and the arrangements of the minerals in the Eozoic limestone, could be accounted for by inorganic agencies, there still remains the nummuline structure of the chamber walls, to which, the author asserts, no parallel can be shown in any undoubted mineral product. In conclusion...
Página 152 - CONTRIBUTIONS TO NATURAL HISTORY, chiefly in relation to the Food of the People.
Página 147 - ... of magnificent colours obtained from that substance. This new dye is the more valuable since it may be associated with any kind of madder colour, and may be treated in subsequent processes like logwood. It is obtained by dissolving hydrochlorate of aniline in an aqueous solution of hydrofluosilicic acid (spec. grav. 8° B), which has been properly thickened, and then adding chlorate of potash, and printing, or preparing the tissue with chlorate of potash and afterwards printing. On raising the...
Página 153 - Cast Away on the Auckland Isles : a Narrative of the Wreck of the ' Grafton,' and of the Escape of the Crew, after Twenty Months
Página 34 - Homological Anatomy" seeks, in the character of an organ and part, those chiefly of relative position and connexions that guide to a conclusion, manifested by applying the same name to such part or organ, so far as the determination of the namesake-ism, or homology, has been carried out in the animal kingdom. This aim of anatomy concerns itself little, if at all, with function, and has led to generalisations of high import beyond the reach of one who rusts on final causes. It has been termed, grandiloquently,...
Página 180 - With a power of 240 it was beautifully defined, light, rather mottled, and the edges the least in the world unshaped. It is not nebulous, but looks as if it had a double outline, or like a star a little out of focus. It is perfectly circular.