412 



IRRIGATION FARMING. 



This gate is called the Carlisle gate, as a man by that 

 name invented it. Suppose a canal is sixteen feet wide; 

 drive three good six-inch posts into the bottom of the 

 stream — one on each side and one in the middle; make 

 a water-gate just as if intended to swing it to a pole 

 the old-fashioned way. Then fasten the gate to the 

 stakes at the bottom with strap-hinges — or if cheap- 

 ness is an item, with wires ; then prop it up so that it 

 will stand ere<5t against the common stream, but so that 



FIG. 103 — WATER-GATE, 

 STANDING POSITION. 



FIG. TO4 — WATER-GATE, 

 WHILE WATER IS HIGH. 



high water will wash it down where it will lie, letting 

 the drift go over, but will not carry the gate away. 

 The stakes or posts at the bottom should be driven 

 clear down to the bottom of the stream, or the water 

 will make a whirl around them and finally dig them 

 up. If the stream is large two or more gates can be 

 put in, in the same way. After the storm is over and 

 the water recedes the gate is raised. 



The Transplanting Machine. — This is a sort of 

 an irrigation system on wheels, and while it was origi- 

 nally invented for planting tobacco, it serves as well for 

 sweet potatoes, tomatoes, and cabbage. The machine 

 is not unlike a mower in general appearance and costs 

 $jo. It is drawn by two horses. The field is previ-^ 



