74 TRANSACTIONS OF THE 



The canal of Cavo Marocca, in Loml)ardy, is one hundred and fifty 

 miles loni^, and cost eight thousand dollars per mile. The total super- 

 ficial irrigated region is tAvo thousand five hundred square miles, or one 

 million seven hundred and fifty thousand acres. 



The canals of the Ticino are equal to six hundred and twenty-seven 

 and one-fourth miles in length, watering one hundred thousand one 

 hundred and sixt3--eight acres. 



The canals of the Sesia are two hundred and twenty-five and one-half 

 miles long, irrigating forty-one thousand three hundred and thii'ty-three 

 acres. The canals of the Dora Battea irrigate one hundred and fifteen 

 thousand five hundred acres. 



The whole irrigated region of Piedmont is one million five hundred 

 thousand acres. The amount of cultivated land is eight hundred and 

 ninety thousand four hundred and fifty-four acres, and the area is covered 

 by a network of canals more than one thousand two hundred miles long. 

 The entire length of the canals of Lombardy is four thousand five hundred 

 miles, irrigating over two millions of acres. In the entire valleys of the 

 Po, Piedmont, and Lombardy, there is an increased rental of eight hundred 

 and thirt}' thousand pounds sterling per year, for an expenditure of forty 

 million pounds sterling; and the progressive increase in population for 

 the irrigated districts is two hundred and seventy-eight one-thousandths 

 per cent, while for the unirrigated districts it is only one hundred and 

 seventy-four one-thousandths per cent. In the Motara and Yignano 

 districts there was no regular culture; jthe population was scanty and 

 poor, and their industry and internal commerce languishing. Now, as 

 irrigated, it has become richl}^ productive and one of the most densely 

 populated regions in Europe. 



In India the canal of the Western Jumna is four hundred and forty-five 

 miles long, irrigating eight hundred and fifty-nine thousand nine hun- 

 dred and two acres. The best Avatered district is the great sterile tract 

 of Hissar, the chief towns of which in eighteen hundred and seven were 

 literall}' without an inhabitant. In eighteen hundred and thirtj'-seven 

 and eighteen hundred and thirty-eight, the gross value of crops in all , 

 was one million four hundred and sixty-one thousand two hundred and 

 seventy-six pounds stei"ling. One tenth was paid to the Government as 

 land rental, and the remainder supported during a famine over five hun- 

 dred villages. 



The canals of the Eastern Jumna measure five hundred miles, irri- 

 gating four hundred and twenty-one thousand eight hundred and seventy- 

 five acres. The gross value of the crops in eighteen hundred and 

 forty-six and eighteen hundred and forty-seven on irrigated lands, which 

 otherwise would have been unproductive, was four hundred and eighty- 

 eight thousand four hundred and ninet^'-four pounds sterling, of which 

 one tenth was Government revenue. 



The Sutlej canal waters an area of three hundred and twelve thousand 

 acres; its increased land revenue is twentj'-four thousand three liundred 

 and twenty-one pounds sterling. The value of the crops from irrigation 

 was one million four hundred and eighty-eight thousand five hundred 

 pounds sterling. 



The Ganges canal is eight hundred and ninety-eight and one half miles 

 in length, and irrigates four million five hundred thousand acres The 

 increased land revenue is four hundred and two thousand eight hundred 

 and ninety pounds sterling. The value of the crops from irrigation, on 

 land not otherwise pi'oductive, was seven millions six hundred and fifty- 

 three thousand one hundred and twenty-five pounds sterling, of which 



