最終更新日：2022/12/24
It having hitherto been a deſideratum to draw ſilver wire fine enough for aſtronomical uſes, our author's improvement conſiſts in nothing but in flattening the fineſt wires which are now drawn.
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It having hitherto been a deſideratum to draw ſilver wire fine enough for aſtronomical uſes, our author's improvement conſiſts in nothing but in flattening the fineſt wires which are now drawn.
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