S LO 



SLU 



)91 



ed immediately after they are taken 

 from the trees ; or tlic lower ends 

 should be enclosed in wet clay till 

 they are set in the ground. This 

 last will be necessary when the 

 slips must be carried to any con- 

 siderable distance. And in this 

 case, they should lie for a while in 

 water before they are put into the 

 ground. 



It is necessary to place them in 

 moist earth, rich, and hnely pul- 

 verised ; and they should be fre- 

 quently refreshed by a little water- 

 ing, unless the season be wet. 



But it is the surest method to 

 plant slips in pots, especially of 

 those kinds which are least apt to 

 strike root. In this case, it will 

 not be at all difficult to give them 

 continually the right quantity of 

 moisture. Slips from almost any 

 kinds of trees and shrubs may be 

 thus made to grow ; but they will 

 never make so large trees as those 

 which come from the seeds. They 

 will be the more fit, however, for 

 the borders of gardens. 



SLOUGH, a deep muddy spot 

 of earth. 



Soft and hollow places in roads, 

 where puddles of water stand after 

 rain, by means of the frequent 

 passing of loaded wheel carriages, 

 often become deep and trouble- 

 tome sloughs. The way to pre- 

 vent their existence, is to make a 

 channel, or a covered drain, where 

 the shape of the ground admits of 

 it, to lead away the superfluous 

 water. For the ground will thus 

 be permitted to dry and harden, so 

 as to prevent the sinking of wheels 

 into it. 



To cure a slough in a road, sink 



pebbles, or any kind of stones into 

 the bottom, and cover them with a 

 thick coat of coarse gravel, or with 

 cinder from a smith's forge, or with 

 rubbish from a brick kiln. But 

 this should be done in a dry sea« 

 son. 



SLUICE, a frame of timber, 

 serving to obstruct and raise the 

 water of the sea, or of a river, and 

 to let it pass as there may be oc- 

 casion for it. 



Shiices are required for mills, 

 and tor locks to carry on inland 

 navigation. But 1 sliaH only con-, 

 sider those sluices which the hus- 

 bandman may tind useful in flood- 

 ing of !ow lands, or watering a dry 

 soil with the Persian wheel, or in 

 reclaiming of marshes. 



For the first and second of these 

 purposes, sluices with gates to raise 

 and let down are proper. But for 

 the last gates are not needed when 

 the stream is large. 



The Persian wheel has floats- 

 made hollow, and of such a con- 

 struction, as to raise the water from 

 a sluice, to the height of two-thuds 

 the diameter of the wheel ; where 

 the floats discharge the water into 

 a trough ; whence it is convened 

 away in such a manner as to water 

 the neighbouring lands. For a 

 particular account of the maclnne, 

 see Mills''s Duhamel. 



For reclaiming of marshes, boxes 

 with shutters are used, especially 

 when but a small quantity of fresh 

 water will need to pass out through 

 the sluices. A box may be made 

 of four pretty wide and strong 

 planks, either nailed or pegged 

 together. The length of the box 

 must be equal to the thickness of 



