Aqua fortis

Definition and stakes

1911 Encyclopædia Britannica, Volume 12… (1911)

“ To the solution of this problem the next ten years of his life were devoted. With ceaseless energy and unwavering faith in the successful outcome of his labours, in the face of repeated failures and hampered by poverty, which several times led him to a debtor’s prison, he persevered in his endeavours. For a time he seemed to have succeeded with a treatment (or “cure”) of the rubber with aqua fortis. In 1836 he secured a contract for the manufacture by this process of mail bags for the U.S. government, but the rubber fabric was useless at high temperatures. ”
Source: Wikisource

F. B. Tower,  Illustrations of the Croton Aqueduct (1843)

“ Between the columns the spaces are open, and from these arcades the currents of water flow with a loud noise, and in great abundance. The apertures on the sides are smaller than the others, and in each of those is placed a dragon spouting water into the spacious magnificent marble basin below. This fountain is furnished with water by the Aqueduct called Aqua Paolo; and it runs from the basin, in a very large stream into several canals, whence it is employed to work various corn, paper, and other mills, as well as to supply fountains and fish-ponds in the gardens and palaces of the opulent. ”
Source: Gutenberg

John Malcolm Mitchell, Thomas Ashby, Alexander Stuart Murray, and Ernest Prescot Hill,  1911 Encyclopedia Britannica (1911)

“ It was restored by Paul V. in 1611, who made use of and largely transformed the remains of the ancient aqueduct; he allowed some of the inferior water of the lake to flow into the channel, and it is thus no longer used for drinking. (11) Aqua Alexandrina, rising about 14 English miles from Rome, between the Via Praenestina and the Via Labicana, the work of Alexander Severus (A.D. 226) . The springs now supply the modern Acqua Felice, constructed by Sixtus V. in 1585, but the course of the latter is mainly subterranean and not identical with that of the former. ”
Source: Wikisource

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