126 The Principles of Part III. 



while others one like fea-falt. Some vege-^ 

 tables require a greater proportion of wa- 

 tery parts, and fome a fmaller. The food 

 of vegetables, then, is not all of the fame 

 kind. J-u- A,, /.&Arfe M^LM 



M 



? HALES maintained, that all things 

 were made from water. 



HE L MO NT was of this opinion, and 

 fupported it by an experiment known to 

 every perfon. He planted a willow, weigh- 

 ing 5lb. in a pot filled with dry earth. 

 The earth he watered with rain-water. 

 In five years the willow, not computing 

 the leaves which had fallen off, weighed 

 1 64 Ib. ; but the earth had loft nothing. 

 That elementary water is the food of ve- 

 getables, is a conclufion too ftrong from 

 this experiment. It only mows, that water 

 contains particles which are capable of nou- 

 rifhing plants. We have fhown, that fnow 

 and rain-water contain earth, oil, and as 

 they fvveep the air, muft contain fuch falts 

 as are in it too. SOME 



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