 | Repertory of arts, manufactures and agriculture - 1805 - 534 páginas
...matter, the respective quantities may be ascertained by weighing the^ residuum after the action qf the acid, which must be applied till the mixture has...and has ceased to effervesce. This residuum is the silicious part : it must be washed, dried, and lieated strongly in a crucible ; the difference between... | |
 | Friedrich Christian Accum - 1808 - 492 páginas
...and partly of siliceous matter, the respective quantities may be ascertained by weighing the residuum after the action of the acid, which must be .applied...whole indicates the proportion of .calcareous sand. .9. Examination of the fnely divided Matter of soils, and mode of detecting mild Lime and Magnesia.... | |
 | William Nicholson - 1808 - 900 páginas
...residuum will be left after the acid has ceased to act on it, the acid being added till the mixture has a sour taste, and has ceased to effervesce. This residuum is the siliceous part ; which being washed, dried, and heatrd strongly in a crucible, the difference of in weight from that... | |
 | 1814 - 760 páginas
...and partly of siliceous matter, the respective quaniities may be ascertained by weighing the residuum after the action of the acid, which must be applied...till the mixture has acquired a sour taste, and has censed to effervesce. This residuum is the siliceous part : it must be washed, dried, and heated strongly... | |
 | William Thomas Brande - 1821 - 666 páginas
...vegetable matters, if any exist in the soil. pective quantities may be ascertained by weighing the residuum after the action of the acid, which must be applied till the mixture has at quired a sour taste, and has ceased to effervesce. This residuum > the siliceous part; it must be... | |
 | Andrew Ure - 1821 - 436 páginas
...residuum will be left after the acid has ceased to act on it, the acid being added till the mixture has a sour taste, and has ceased to effervesce. This residuum is the siliceous part ; which being washed, dried, and heated strongly in a crucible, the difference of its weight from that... | |
 | F. ACCUM - 1828 - 526 páginas
...and partly of siliceous matter, the respective quantities may be ascertained by weighing the residuum after the action of the acid, which must be applied...whole indicates the proportion of calcareous sand. 7- Examination of the finely divided Matter of Soils; and mode of detecting Mild Lime and Magnesia.... | |
 | Andrew Ure - 1831 - 980 páginas
...residuum will be left after the acid has ceased to act on it, the acid being added till the mixture has a sour taste, and has ceased to effervesce. This residuum is the siliceous part ; which being washed, dried, and heated strongly in a crucible, the difference of its weight from that... | |
 | Cuthbert William Johnson - 1842 - 1364 páginas
...and partly of silicious matter, the respective quantities may be ascertained by weighing the residuum after the action of the acid, which must be applied till the mixture bas acquired a sour taste, and has ceased to effervesce. This residuum is the silicious part : it must... | |
 | Cuthbert William Johnson - 1844 - 1210 páginas
...and partly of silicious matter, the respective quantities may be ascertained by weighing the residuum after the action of the acid, which must be applied...and has ceased to effervesce. This residuum is the silicious part ; it must be washed, dried, and healed strongly in a crucible: the difference between... | |
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... matter, the respective quantities may be ascertained by weighing the residuum after the action of the acid, which must be .applied till the mixture has acquired a sour taste, and has ceased to effervesce. This residuum is the siliceous part... 
