p Q/buN'd. Chap. iV* 



For every Sort of Dung, the longer Time it fer- 

 ments without the Ground, the lefTer Time it has to 

 ferment in it, and the weaker its Ferment will be. 



The Reafon given for this great Diminution of 

 Dung is, that the Seeds of Weeds may be rotted, 

 and lofe their vegetating Faculty •, but this I am cer- 

 tain of by Demonftration, that let a Dunghil re- 

 main Three Years unmov'd, though its Bulk be vaftly 

 diminiffi'd in that Time, and its beft Quality loft, 

 Charlock-feed will remain found in it, and ftock the* 

 Land whereon it is laid : For that Ferment which is 

 fufficient to confume the Virtue of the ftercoreous 

 Salts, is not fufficient to deftroy the vegative Virtue 

 of Charlock-feeds, nor (I believe) of many other 

 Sorts of Weeds. 



The very Effluvia of animal Bodies, fent off by 

 Perfpiration, are fo noxious as to kill the Animal that 

 emits them, if confin'd to receive them back in great 

 Quantity, by breathing in an Air replete with them ; 

 which appears from the foon dying of an Animal (hut 

 up in a Receiver full of Air. Yet this feems to be the 

 moft harmlefs of all forts of animal Excrements the 

 Air can be infected with. How noxious then muft 

 be the more fetid Steams of Ordure! 



If a Catalogue were publifh'd of all Inftances from 

 Charnel-houfes (orCcemeteries) and of thepeftiferous 

 Effects, which have happen'd from the Putrefaction 

 of dead Bodies, after great Battles, even in the open 

 Air, no body, I believe, would have a good Opinion 

 of the Wholfomenefs of Animal Dung ; for if a great 

 Quantity do fo infect the Air, 'tis likely a lefs may 

 infect it in proportion to that lefs Quantity. 



In great Cities the Air is full of thele Effluvia* 

 which in hot Climes often produce the Peililencej 

 and in cold Climes People are generally obferv'd to 

 live a lefs time, and lefs healthfully, in Cities, than in 

 the Country \ to which Difference, 'tis likely, that 

 the eatrng unwftolfome Gardenage may contribute. 



This 



