Word: hecla
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Dates: during 1890-1899
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HARVARD ENGINEERING SOCIETY.- Meeting of Civil Section tonight at 7.45 at 3 Matthews. Mr. A. N. Johnson will be present and will tell something of his work with the Calumet and Hecla Mining Company last year...
...near future the society will be addressed by Mr. E. D. Leavitt, at one time chief engineer of the U. S. Navy, and now consulting engineer of the Calumet and Hecla Mining Company...