Discoveries and inventions of the nineteenth century (1905)
Routledge, Robert · London : G. Routledge and Sons · leaf 547
Fig, 259.—Daniells Cell and Battery. are provided with screws by which wires may be attached. In the coppervessel is placed a saturated solution of sulphate of copper,and some crystals■of the same substance are placed on the perforated shelf within the vessel.The porous tube is filled with diluted…
Inventions
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