arsenick

This here is the stronger, because the sulphur of arsenick is loaded with certain salts that make a stronger impression on the smell.

Forty Centuries of Ink 1904

Of gold we have found perhaps but too many uses; but when the professor told us here at Bologna, that silver in the mine was commonly found mixed with _arsenick_, a corroding poison, or _lead_, a narcotic one; who could help being led forward to a train of thought on the nature and use and abuse of money and minerals in general.

Observations and Reflections Made in the Course of a Journey through France, Italy, and Germany, Vol. I Hester Lynch Piozzi 1781

"Fourthly, that the first of these liquors in a mixture of the alkali and igneous parts of quick-lime with the sulphureous substance of arsenick; for the orpin is a sort of arsenick, as I said before.

Forty Centuries of Ink 1904