It flameth white and candent like Camphire, but dissolveth not in aqua fortis, like it.
A print from it, in aqua fortis, by Alessio Loyr, is mentioned Lett.
Do not act and say, like Macleay versus Fleming, "I write with aqua fortis to bite into brass."
But if in the dissolving there be aqua fortis, it sufficeth to calcine it.
In the two next processes we shall shew two other methods of separating Silver from aqua fortis.
The aqua fortis must not be too strong, or the wood will go brown or black.
As to the Silver which remains dissolved in the aqua fortis, there are several ways to recover it.
Evidently this means what Vasari calls oil of sulphur, aqua fortis.
So aqua fortis, whose ingredient is vitriol, will make white bodies black.
The nitrous air gradually lost its elasticity, the bladder collapsed, and became yellow as if corroded by aqua fortis.