302 BATH WATERS. 



Earlycxamina- *' Moreover, if it be laid on the tongue, it hatk a per- 

 tion of the feet vitriolick taste ; and no wonder, for the nitro-aere- 

 at waters. ^^^^ spirit, after some time, closeth with the metallick 

 mineral, and salino-sulphureous marchasite, of which 

 vitriol useth to be made, mixed in the sand, and causeth it 

 to ferment, and at last, as was shewed before, converts it 

 into vitriol." 



Should the above extract prove interesting or amusing 

 to your scientific readers, I shall be much gratified. 



I am, 

 With much respect, 

 ^ Sir, 



Your most obedient servant, 



W.R. CLANNY. 

 Durham^ 15th Nov. 1806. 



IX. 



The Improvement of Boggij Land hi) Irrigation^ as 

 carried into Effect, By Mr, William Smith*. 



SiK, 



Improvement •^n.AVING paid very considerable attention to im- 

 of boggy lands provemcnts of land by irrigation, and applied the water 

 by irrigation, j^^ a manner which I believe to be new and advantageous ; 

 I beg leave to submit my account thereof to ^he Society 

 of Arts, (fee. Upon this plan, the rushes and noxious 

 parts are destroyed, the land is rendered firm, and grasses 

 of good quality spring naturally. Even ferruginous wa- 

 ters will have a good effect thus used. 

 I am. Sir, * 



Your obedient servant, 



William Smith. 

 J3uc7cingh(wi-Streety 

 Oct. 31, 1804. 

 To Charles Taylor, Esq. 



* Soc. of Arts, Vol. XXIII. The silver medal was awarded for 

 this communication. 



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