This section is from the book "Vegetable Gardening", by Ralph L. Watts. Also available from Amazon: Vegetable Gardening.
Throughout the eastern part of the United States there are thousands of opportunities for successful irrigation. Creeks, rivers, ponds and lakes furnish an abundant supply of water, which, in many instances, is available at slight cost. It is not uncommon to find conditions where water might be conducted to the garden by gravity, so there would be no expense for pumping. In many more instances a lift of 5 to 15 feet would put the water on land admirably adapted to garden crops. Near the cities water can usually be secured at reasonable prices, and at some places for as low as 4 or 5 cents a thousand gallons. The late W. W. Rawson, the well-known New England gardener, claimed that an intensive grower could well afford to pump water at a cost of 10 cents a thousand gallons. If it were a matter of saving a crop from almost total loss it might pay to use water at double this cost.
 
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