CONTENTS. 



page 

 Of the Lauro-Cerafus, or common 



Laurel, - - 9 

 Hemlock - - 12 

 Mufhrooms - - 13 

 Copper veffels - - 15 

 The folution or fait of lead - 21 

 Brown earthen ware, &c. - ib. 

 Of the adulteration of bread and flour 25 

 Of Water. - - 28 

 Rain water - - 31 

 Snow water ^ ^ ^3 

 Spring water - - 35 

 Stagnant water ^ - 36 

 Pump water - - ib. 

 Thames and New-River water 39 

 Methods, by which water may be ob- 

 tained in its greateft purity - 40 



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