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QUEENSLAND AGRICULTURAL JOURNAL. [1 Supr., 1897, 
3. When blinding is used, see that it is carefully done. 
4. See that the drains are well filled. 
5. Have your main drains at least 6 inches deeper than the side or other 
drains, and be careful to make a neat opening in the top of the main 
’ drain, where the side drain runs into it. 
6. See that the water from the side drains rung into the main drain in 
such a manner, and at such an angle, that it will not check or 
otherwise interfere with the flow of water in the main drain, 
7. See that the outlets of all main drains are kept open, and that there- 
is a good get-away for all water coming from the drains. The open 
drain or other watercourse into which the drains empty should be. 
kept in good order, and should not be allowed to become choked 
up with weeds or silt. Jf the mouth or outlet of a main drain 
is blocked, the whole drainage system connected with the blocked 
drain will soon silt up and become worthless; so that the outlets. 
of all main drains should always be kept clear. 
