388 



Irrigation and Drainage 



of vegetables 24 inches apart, and these are sepa- 

 rated by furrows a foot wide and 6 inches deep, 

 through which water is led for irrigation, and Fig. 

 117 is a plan of a section of the upper end of a cab- 

 bage field as laid out on the valley sands of the river 

 Seine, just outside the city walls. 



Fig. 116. Chinese method of irrigating cabbage, 

 San Bernardino, California. 



Melons and cucumbers are planted upon still 

 broader beds, 6 to 8 feet wide, separated by water 

 furrows, as represented in Fig. 118, the hills being 

 planted near each margin of the bed and the vines 

 trained away from the furrows. 



At Rocky Ford, Colorado, where melons are raised 



