238 QUEENSLAND AGRICULTURAL JOURNAL. [1 Aprit, 1902. 
How ro Dre rue Dratns. 
There are several special tools used for tile drainage, the spades, as you can 
see by the illustrations, being of such a width and shape that they will not take 
out more than is absolutely necessary, and they are often rounded so as to hold 
the earth better. Such are Figs. 1 and ». The bottoming tools (8, 4, 5, 
and 6), which are either straight or rounded, preferably the latter, are used 
for taking out the bottom spit of 10 to 15 inches, according to the soil, and 
are made of various widths to suit the size of tile to be used. 
