4 The following are the symbols employed by Dalton: which represent in order, hydrogen, nitrogen, carbon, oxygen, phosphorus, sulphur, magnesia, lime, soda, potash, strontia, baryta, mercury; iron, zinc, copper, lead, silver, platinum, and gold were represented by circles enclosing the initial letter of the element. [Please select]
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Cyanine appears to behave as an acid, at least it forms with lime, baryta, strontia, oxide of lead, &c. [Please select]
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