 | John Henry Pepper - Science - 1851 - 640 pages
...water; pour a little cabbage blue into the solution, and put a portion into two glasses, connecting them by a piece of linen or cotton cloth previously moistened...in the same solution. On putting one of the wires of the galvanic pole into each glass, the acid accumulates in the one, turning the blu« »c» •.... | |
 | John Henry Pepper - 1861 - 140 pages
...; pour a little cabbage blue into the solution, and put a portion into two glasses, connecting them by a piece of linen or cotton cloth previously moistened...in the same solution. On putting one of the wires of the galvanic pole into each glass, the acid accumulates in the one, turning the blue to a red, and... | |
 | Robert Evans Peterson - Science - 1863 - 598 pages
...water; pour a little cabbage blue into the solution, and put a portion into two glasses, connecting them by a piece of linen or cotton cloth previously moistened...in the same solution. On putting one of the wires of the galvanic pole into each glass the acid accumulates in the one, turning the blut 541 46 to a... | |
 | Every boy - Amusements - 1881 - 932 pages
...; pour a little cabbage blue into the solution, and put a portion into two glasses, connecting them by a piece of linen or cotton cloth previously moistened...in the same solution. On putting one of the wires of the galvanic pole into each glass, the acid accumulates iu the one, turning the blue to a red, and... | |
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Put a tea-spoonful of sulphate of soda into a cup, and dissolve it in hot water ; pour a little cabbage blue into the solution, and put a portion into two glasses, connecting them by a piece of linen or cotton cloth previously moistened in the same solution.... 