240 SOILS, MANURES, See. 
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I 
with the utmoft caution, or their effedls 
may prove deftrudlive. 
As dungs are the moft ufeful, fafe, and 
eafy to procure, of almoft any kind of 
manure, it may not be improper to add 
a few remarks refpedling the application 
of them, upon which, indeed, in great 
meafure, fuccefs ultimately depends, viz. 
Dungs fhould never be expofed, during 
fummer, too thin on the furface, becaufe 
the full adlion of the fun and air upon 
them, in that hate, would volatilize their 
falts and oils, which would exhale and 
be loft. 
They may lay thinner, and be more 
expofed to the atmofphere during winter, 
becaufe the air is then more replete with 
the nitrous or aerial acid, which the falts 
of the dung attradi in greater quantity by 
fuch expofure, and are thereby rendered 
more nutritive, and fooner fit for ufe. 
Dungs 
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