. Transactions of the Royal Society of New Zealand . Kniqhitdel. WrSANOTMEC/i/Af BI/C//AMW, KmaAi I v.—C HEMISTRY. Art. LII.—On an Allotropic Form of Zinc and Cobalt Salts. By William Skey, Analyst to the Geological Survey Department.[Read before the Wellington Philosophical Society, 4th December, 1880.]In testing some ores for certain metals, I obtained reactions with both theferro- and ferri-cyanide of potassium, which, according to our present know-ledge, indicated the presence of lead and copper, although further analyticalprocesses showed both metals to be altogether absent. Upon
. Transactions of the Royal Society of New Zealand . Kniqhitdel. WrSANOTMEC/i/Af BI/C//AMW, KmaAi I v.—C HEMISTRY. Art. LII.—On an Allotropic Form of Zinc and Cobalt Salts. By William Skey, Analyst to the Geological Survey Department.[Read before the Wellington Philosophical Society, 4th December, 1880.]In testing some ores for certain metals, I obtained reactions with both theferro- and ferri-cyanide of potassium, which, according to our present know-ledge, indicated the presence of lead and copper, although further analyticalprocesses showed both metals to be altogether absent. Upon taking a retrospect of my operations throughout, I found that thesolution which I had prepared for my tests were either uniformly alkalineor, if acid, had been at one time in an alkaline condition. The idea thereforeoccurred to me that alkalies modify the basic portion of these salts—that is,their metallic oxides, and that the forms to which they are thus modifiedpossess sufficient stability to enable them to withstand the disintegratingeffe
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