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 jrmedthatwi- 

 ting vegetation 

 t be owiugto 



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 /jugtothecal- 



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Sect. X. 6. 3 



MANURES 



5 



tribute to the nutriment of animals, as 

 Part III. Article I. 2. 4. 2. 



mentioned in Zoonomia, 



1-* 



3. A third mode, 

 may be afcribed to its 

 with it may be converted into an hepar 



by which lime promotes vegetation, I fuppofe 

 containing phofphorus ; which by its union 



nd th 



dered foluble 



water, without its becomin 







cid by th 



add 



f oxy 



Phofpl- 



mal bod 



probably as neceflary an ingredient in vegetable 

 which appears by the phofphoric light vifibl 



HI 



ood during fome ftages of putrefacl 



phofphorui 

 fixed alkal 



IS 



hich 1 fuppofe th 



from th 



fet at liberty from the calcareous earth, or 

 from the carbon of the decompofing wood, and 



quires oxygen from the atmofphere ; and both warmth and light are 

 emitted during their union. But phofphorus may perhaps more fre- 

 quently exift in the form of phofphoric acid in vegetables, and may 

 thus be readily united with their calcareous earth, as mentioned in 

 No. 5. 6. of this Sedion, and may be feparated from its acid by the 

 carbon of the vegetable during calcination, and alfo during putrefac- 

 tion, which may be confidered as a flow combuftion. 



The exiftcnce of a folution of phofphoric acid and calcareous earth 

 in the veflels of animals is proved by the annual renovation of the 

 ihells of crab-fi(h, and by the fabrication of the egg- (hells in female 

 birds ; and is occafionally fccreted, where it cements the wounds made 

 on fnail-ftiells ; or where it joins the prefent year's growth of a fnail- 

 fliell to the part, v 



here a membranous 



had been attached for 



the protedion of the animal during its ftate of hib 



And 



laftly, it is evident from the growth of the bones of quadrupeds, and 



them where they h 



been 



from the depofition of callus to jom 



broken. 



4. Lime in its pure ftate is foluble in about 6co times its weight of 



water; and by a greater quantity of carbonic acid than is neceflary 

 for its cryftallization, it is foluble in water in much greater quan- 

 tities, as appears by the calcareous depofition of the water at Mat- 

 lock i 



