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ITALIAN IRRIGATION
PRINTED BY WILLIAM BLACKWOOD AND SONS, EDINBURGH.
Introductory remarks-varieties of measures in Italy, and difficulties
created thereby-importance of a good measurement system to the
agricultural interests of India-sketch of existing system there-mea-
surement by area of irrigation, and by area of outlet-distinction to be
observed between the unit of measure and the means of measurement
-illustrated by reference to Art. 643 of the code of Charles Albert-
measurement of water for irrigation in Parma and Placentia-in Mo-
dena and Reggio-comparison of the Modenese macina and the Pied-
montese ruota-state of the question in Ferrara, Romagna, and
Bologna,
SECTION I-SYSTEM OF MEASUREMENT IN PIEDMONT.
Difficulty of the subject-the ruota of Piedmont-date of introduction-
dimensions-volume in English measures-imperfections from varia-
tions of linear dimensions-examples of this-practical objections to
the use of the ruota-the oncia of Caluso introduced by the engineer
Contini-dimensions-volume-neglect of the essential conditions of
the measure in practice-reintroduction of the ruota by Francesco
Michelotti-modification thereof by Ignazio Michelotti-dimensions and
volume of the oncia of Michelotti-oncia of the Novarese-dimen-
sions and volume-imperfectious-the ruota of Novara-the oncia of
Mortara general conclusion regarding the ancient and loeal water-
measures of Piedmont-the modulo-its dimensions and volume-
method of issuing more than one modulo-forms of apparatus employed
for measuring water in Piedmont-example with diagram-varieties
of these in practice-general conclusion from the examination of the
measurement system of Piedmont -formula-tables of the absolute
and relative values of the different water-measures of the Sardinian
states,
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3-12
13-26