Leonardo da Vinci, artist, thinker and man of science; . s prosecuted with any great energy. An exception must be made in favour of Pagave, who lias reduced Leonardos sharein the construction of this canal to its due proportions. (.Sec Vasari, Delia Valle edition,vol. v., p. 63-64) - Not Bertoninij da Novara, as some have asserted. LEONARDO AS AN? ENGINEER In 1496 the cnginccrinj^r prolilcjiiis connected wiih it were still underdiscussion. Are \vc to credit Leonardo with the work ? The factis that, in 1496, Leonardos name appears on the list of the dukesengineers, and he has left anion<r hi
Leonardo da Vinci, artist, thinker and man of science; . s prosecuted with any great energy. An exception must be made in favour of Pagave, who lias reduced Leonardos sharein the construction of this canal to its due proportions. (.Sec Vasari, Delia Valle edition,vol. v., p. 63-64) - Not Bertoninij da Novara, as some have asserted. LEONARDO AS AN? ENGINEER In 1496 the cnginccrinj^r prolilcjiiis connected wiih it were still underdiscussion. Are \vc to credit Leonardo with the work ? The factis that, in 1496, Leonardos name appears on the list of the dukesengineers, and he has left anion<r his writings certain accounts ofexpenditure and notes of levels relating to the navigation of theAdda near Brivio. But we must add that from 1494 onwards, thename of Bartolommeo della Valle figures on the same list, and thatthe said Bartolommeowas the identical engi-neer to whom, withBenedetto da Massalia,was entrusted, in 1516,the expenditure ofFrancis Ls subsidy ducats in aid olthese very same is natural to supposethat when the under-. taking was commencedby II Moro, it was alsoto him that the inaugu-ration of the work wasentrusted.^ According to Bel-trami, work on theMartesana may, then, bedivided into two distinctperiods ; the first, beforethe arrival of Leonardo, corresponds to the making of the canal from Trez/o to Mihui, tor whichBertola da Novate was the engineer ; the other |)eriod, posterior toLeonardos departure fur the French court, includes the studies andother preparations of Della Valle and De Massalia for the Padernocanal. Although described by Carlo Pagnano as early as 1520, this 1 Leonardo da Viiicie illYnvig/io Grande. My account of the \arioiis canals in theMilanese province attributed to Leonardo is borrowed from this work. A CANNON FOfNDRY.(W^indior Library.) I02 LEONARDO DA VINCI second enterprise was not completed until near the end of the sixteenthcentury, under the direction of Meda. Beltramis argument is close, as we must allow, and ye
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