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Three letters on mining and smelting : in which a method is laid down, whereby these useful sciences may be greatly improved; to which is added, a fourth letter; setting forth, a discovery of an easy method to secure ships bottoms from worms / by Diederick Wessel Linden
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Providence has evidently given us herAssistance, and afforded us all the requisiteMeans for effectually accomplishing it:As for Instance, the Anti.-nts were ignorantof the Method of working stubborn Rocksbv the help of Fire, which the rationalMcd. rns are very well acquainted with, Imean Inch Helps of Fire as are not in-cluded in blasting ; but when first Necessityobliged us to fink and drive through hard-Bed of Stone, and peneira'e deep into theMomnains, in order to supply our want ofFossils and Minerals, Gun-powder was ac-cidentally 'discovered; a great Improve-rnen; indeed, and a necessary Utensil in allAits where firing is required ; it thereforeearne t.o be introduced into the Art ofMisting, where it is of such infinite Service,that, for my Part, I do not know how weshould ever be able to come at the Ore ofany mineral Vein, were we deprived ofthe Benefit of blasting.

From a transient yiew of these Cir-cumstances:, it will readily appear, howmuch the late Discoveries have contributedto aid us in the Improvement of Mining,and how little ths Advantages are which inthese Parts are reaped from them; it isequally as evident, that, for want of theseAssistances, the Primitives could not claiman Equality with the rational modern Mi-ners, whereas, in this Country, they can-