A B C OF FLORIDA TRUCKING 19 



but if the soil contains much clay, place them about twenty 

 feet apart. 



If you will refer to figure number two, you will see I 

 have given you a rough sketch of how this system is put in. 

 The first thing to do is to lay the head row, which extends 

 from the water supply, on one end, which ;~ usually an 

 artesian well, to a ditch on the other. This row is usually 

 made out of 4- or 6-inch sewer pipe, the joints cemented 

 together. The irrigating ditches run in opposite directions 

 from the head row, between these and the head row we put 

 in a tiling box as shown in figure number one, only this 

 figure does not show the hole cut in the side of the box for 

 the sewer pipe to fit in. You can readily see that water 

 going into the head row and running through these boxes 

 can be turned into as few or as many rows as desired, so 

 that you can either irrigate all of the field or a part of it at 

 a time. The lower ends of these tiling rows empty into a 

 ditch which carries off the surplus water. Between the ditch 

 and the head row are placed stop boxes. I have shown one 

 of these (figure number three), with the front out, so you 

 can see the partition which is used for damming the water up 

 to any required level. For instance, if we plug up hole No. 

 one, it dams the water up all along the row of tiling from 

 this box to the head row as high as hole number two ; if we 

 plug holes numbered one and two, it forces the water up 

 as high as hole number three. If we wish to overflood the 

 land, which is sometimes done in setting plants, plug up all 

 three of the holes, forcing the water up over the parti- 

 tion. You will note in row A and D we have a bucket box 

 in each, which is double the size of the ordinary stop boxes ; 

 the reason for this is that when setting plants you will need 

 a great many buckets of water, and it is best to have these 

 boxes that are large enough to get a bucket into, scattered 



