TRENCHING 9 



again to its normal level, and leaving the other one 

 empty. The worker will now be in a similar position 

 as when he commenced, except of course that he will 

 have progressed one stage towards the completion of 

 his work. He will still have an open trench before 

 him, and this must be filled from the two feet wide 

 space marked No. 3, in exactly the same way as trench 

 No. i was filled from No. 2. Proceed in exactly the 

 same way until the eighth trench has been opened and 

 filled. Trench No. 9 must be filled from soil from 

 the same end of the next half of the ground, marked 

 A on the plan. This portion of the land should be 

 treated exactly as the first, the only difference being 

 that the operator will now work in an opposite direc- 

 tion to that in which the other half of the ground was 

 trenched. In due time all the trenches will have been 

 opened and filled too with the exception of the last. 

 Now the soil previously removed from the first trench 

 on the other half and placed alongside the last trench 

 (now empty) will of course be used for filling it, and 

 it should have been before mentioned that in removing 

 this soil, care must be taken to keep each layer distinct, 

 so that they may be placed in the trench in the manner 

 practised thoughout. To carry out trenching well 

 each spadeful of soil should at the same time as it is 

 displaced be also turned over ; if this is not done 

 trenching loses much of its value. 



When the land has not been trenched before, and 

 two spits each twelve inches deep were removed in- 

 stead of three in the first place, this practice would of 



