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DEPARTMENT OF AGRICULTURE GEORGIA. 



[414] 



tested, in this country, are most satisfactory. There are no 

 known reasons why it will not pay as well in Georgia as 

 elsewhere. 



WHERE TO BEGIN. 



Bottom lands, which are saturated by the water from 

 pent-up springs, issuing from the adjacent bluffs, will nat- 

 urally furnish the most conspicuous candidates for treat- 

 ment, since the necessity for drainage is most obvious in 

 such localities. The benefits derived from draining these 

 will naturally suggest an extension of the system to up- 

 lands which are saturated and cold until late in the spring. 



DRAINING MATERIAL. 



Tile is, without doubt, the best material, as regards effi- 

 ciency and permanence, but its cost is so great as to amount 

 almost to prohibition. Rock is the next best, where it is 

 accessible, and a firm botton to the drain can be had. 



If the drains have a constant flow of water, so that the 

 material will be kept constantly wet, common pine poles, from 

 four to six inches in diameter, answer well, if the bottom 

 of the drain is firm clay. 



If the bottom is soft or sandy, it will be necessary to rest 

 the poles upon a plank or slab, to prevent them from sink- 

 ing into the ground, or the sand and mud from washing 

 down and stopping the drain. 



Three poles are required, two to rest upon the bottom of 

 the drain, cne on each side, and the third to rest between 

 and upon these, as represented in the accompanying figures. 

 The ends of the poles should be cut at 

 right angles to the length, so as to fit 

 well against each other, and the ends of 

 no two poles should rest at the same 



F.g. 15 End 

 oj Polo Drain. 



Fig. lbSid View of Pole Drain. 



