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of the Workmen, thus suffered to go onin their own Way ? Therefore, undoubtedly,you wih not disagree with me, in pro-. flouncing^ the ihortest and surest the best:I have laid above, that the. Mine Professorshould be well versed in the mechanic Partof Mining ; he must therefore know whenhe has Occasion, for Timber, and whatSort; and, where Timber cannot be had,how to substitute Brick^worlc, or Masonry,in order to gain his Point, and to arrive atthe Ore he is in search of.

Sixthly , A Mine Director must be wellacquainted with all the different Machines-used to drain off the Water with which theMine- may be overwhelmed, that he maybe capable of selecting such as are most fitand neceisiary for his Purpose, when a suffi-cient Level cannot be had : The known‘ Improvements that have of late been madein this Branch of the Science, are verymuch wanted in these Parts ; there are in-deed Fire-engines, 1 and such. Utensils -erect-ed, which are very deservingly calledWhimsies; but their Expensiveness is sogreat, that.they ruin and destroy many be-neficial Mines : Improvements thereforecannot be too soon attempted; which, Ikm very well convinced, might be madewith the greatest Facility ; but the Boun-daries limited me, Will not permit me here

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