104 TILE DRAINAGE 



no mortar. Simply coyer with clay, if possible, six inches deep, 

 and tramp well before filling the rest. If this is your first job of 

 draining you should get either a good drainage engineer or an 

 expert practical tile-ditcher to start you and show you how. 

 From your inadequate description I should say the land should 

 be laid out as below, in the rough sketch: 



Fig. 30. Solution suggested. 



. This is as near as I can hit the case from the insul'licienl data 

 given above. 



DRAINS WITH NO OPKX Ol'TLKTS. 



This raises the general question of drains without open 

 outlets. All through the gravelly drift soils and subsoils of 

 Ohio may be found cut-like depressions so deep that they 

 can not be drained through to lower ground except by cut- 

 ting 6, 10, and even 15 feet deep, or more, through interven- 

 ing land, which would cost too much. These small pockets 

 are often excellent land, only subject to flooding by sudden 

 showers running down the adjacent slopes and not soaking 

 away until the crop, say of wheat or potatoes, is perhaps 

 ruined. If the adjacent subsoil is gravel, the problem may 

 be solved so that it will pay. Mr. T. B. Terry, of Hudson, 

 O., has drained a rather difficult one of this sort lately (not 

 his first) by running a main drain right into the bank toward 

 where the outlet would be if the main were carried far 

 enough. This bank he found, as he expected, to have a por- 

 ous gravel subsoil. Into this he ran the main, several rods, 

 six feet deep or more (if I remember his statement correctly), 

 until he judged the distance gave the gravel time and capac- 

 ity to absorb from the tile main the water brought by it 



