| It is now easy to meet with his engravings in aqua fortis, but not with his pictures. |
| It flameth white and candent like camphire, but dissolveth not in aqua fortis, like it. |
| In March 1905, feeling himself no longer secure, he resigned, indicating fortis as his successor. |
| Together with these appeared Bortolo Cer, whose scenes have been engraved in aqua fortis by Boschini himself. |
| Nitric acid at this phase is called aqua fortis and when it is concentrated, concentrated nitric. |
| The aqua fortis must not be too strong, or the wood will go brown or black. |
