~Triple Project--Upper Jhelam and Upper Chenab Canals and Lower Bari Doab Canal.~--The Lower Chenab Canal takes the whole available supply of the Chenab river. But it does not command a large area in the Rechna Doab lying in the west of Gujranwala, in which rain cultivation is very risky and well cultivation is costly. No help can be got from the Ravi, as the Upper Bari Doab Canal exhausts its supply. Desirable as the extension of irrigation in the areas mentioned above is, the problem of supplying it might well have seemed insuperable. The bold scheme known as the Triple Project which embraces the construction of the Upper Jhelam, Upper Chenab, and Lower Bari Doab Canals, is based on the belief that the Jhelam river has even in the cold weather water to spare after feeding the Lower Jhelam Canal. The true _raison d'etre_ of the Upper Jhelam Canal, whose head-works are at Mangla in Kashmir a little north of the Gujrat district, is to throw a large volume of water into the Chenab at Khanki, where the Lower Chenab Canal takes off, and so set free an equal supply to be taken out of the Chenab higher up at Merala in Sialkot, where are the head-works of the Upper Chenab Canal. But the Upper Jhelam Canal will also water annually some 345,000 acres in Gujrat and Shahpur. The Upper Chenab Canal will irrigate 648,000 acres mostly in Gujranwala, and will be carried across the Ravi by an aqueduct at Balloke in the south of Lahore. Henceforth the canal is known as the Lower Bari Doab, which will water 882,000 acres, mostly owned by the State, in the Montgomery and Multan districts. On the other two canals the area of Government land is not large. The Triple Project is approaching completion, and irrigation from the Upper Chenab Canal has begun. The engineering difficulties have been great, and the forecast does not promise such large gains as even the Lower Jhelam Canal. But a return of 7-1/2 p.c. is expected. ~Monsoon or Inundation Canals.~--The numerous monsoon or inundation canals, which take off from the Indus, Jhelam, Chenab, Ravi, and Sutlej, though individually petty works, perform an important office in the thirsty south-western districts. By their aid a _kharif_ crop can be raised without working the wells in the hot weather, and with luck the fallow can be well soaked in autumn, and put under wheat and other spring crops. For the maturing of these crops a prudent cultivator should not trust to the scanty cold weather rainfall, but should irrigate them from a well. The Sidhnai has a weir, but may be included in this class, for there is no assured supply at its head in the Ravi in the winter. In 1910-11 the inundation canals managed by the State watered 1,800,000 acres. There are a number of private canals in Ferozepore, Shahpur, and the hill district of Kangra. In Ferozepore the district authorities take a share in the management.