 | Henry Enfield Roscoe - 1866 - 420 ページ
...this air is then accurately ascertained by reading off with a telescope the number iof the millimetre divisions on the tube to which the mercury reaches,...and the temperature of the air, are also read off. Such a quantity of pure hydrogen gas is now added as is more than sufficient to combine with all the... | |
 | George Fownes - 1869 - 870 ページ
...is then inFig. 115. trodnced, and its volume accurately ascertained by reading off with a telescope the number of divisions on the tube to which the mercury...trough, together with that of the barometer, and the temperalure of the air, are also read off. A quantity of pure hydrogen gas is now vbie'l, more than... | |
 | Richard Lewis - 1874 - 372 ページ
...inches at the sea-level. all the other parts of a barometer are conveniences to determine accurately the height of the column of mercury in the tube above the surface of the mercury in the basin or cistern. In filling the tube much care and many precautions... | |
 | George Fownes - 1877 - 588 ページ
...filled with mercury, and inverted in a mercurial pneumatic trough. off with a telescope the numl>er of divisions on the tube to which the mercury reaches,...the trough, together with that of the barometer, and For the analysis of air, a quantity sufficient to fill about one-sixth of the tube is introduced, and... | |
 | George Fownes - 1878 - 1054 ページ
...on the tube to which the mercury reaches, whilst the height of tht- column of mercury in the tul« above the trough, together with that of the barometer,...temperature of the air, are also read off. A quantity of jmre hydrogen gas is now added, more than sufficient to unite with all the oxygen present (al>out half... | |
 | sir Henry Enfield Roscoe - 1878 - 532 ページ
...that is, of the quanlity of oxygen which it contains. off with a telescope the number of the milimeter divisions on the tube to which the mercury reaches,...height of the column of mercury in the tube above tha trough, together with that of the barometer and the temperature of the air, are also read off.... | |
 | sir Henry Enfield Roscoe - 1878 - 448 ページ
...that is, of the quantity of oxygen which it contains. off with a telescope the number of the milimeter divisions on the tube .to which the mercury reaches,...whilst the height of the column of mercury in the tube atiove the trough, together with that of the barometer and the temperature of the air, are also read... | |
 | George Fownes - 1878 - 1062 ページ
...and its volume асFig. I0i. curately ascertained by reading off with a telescope the number of tlie divisions on the tube to which the mercury reaches, whilst the height of tlie column of mercury in the tube above the trough, together with that of the barometer, and the temperature... | |
 | George Fownes - 1885 - 1094 ページ
...of the tube is introduced, and its volume accurately ascertained by reading ofi' with i; a telescope the number of divisions on the tube to which the mercury...height of the column of mercury in the tube above tbe Fig. 119. Fig. 120. trough, together with that of the barometer, and the temperature of the air,... | |
 | Dmitry Ivanovich Mendeleyev - 1891 - 784 ページ
...detonating gas is thus heated up to a temperature of 132°. When its volume becomes constant it is measured, the height of the column of mercury in the tube above the level of the mercury in the cylinder being noted. Let this volume equal v ; it will therefore contain... | |
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... divisions on the tube to which the mercury reaches, whilst the height of the column of mercury in the tube above the trough, together with that of the barometer, and the temperature of the air, are also read off. 
