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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