An essay on the mystery of tempering steel : wherein the effects of that operation are fully considered / Extracted from the works of the celebrated Mons. Reaumur ; By J. Savigny.

  • Réaumur, René-Antoine Ferchault de, 1683-1757.
Date:
1771
Catalogue details

Licence: Public Domain Mark

Credit: An essay on the mystery of tempering steel : wherein the effects of that operation are fully considered / Extracted from the works of the celebrated Mons. Reaumur ; By J. Savigny. Source: Wellcome Collection.

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    . \ % ' PREFACE. vii making the myftery ftill more my fterious. . ** * T * * r My difappointments have fome- T * * A *t»r - • v t ■ /-■: * •+ f r *r, * „ times fuggefted to me, that it is better for an author to be - > i Jl >. : perfectly filent on abftrufe points, ' 1 V* than to treat thereon, unlefs he * poffefles both intention and abi~ * m .. . t 1 lity to be very explicit. I found myfelf reduced to the neceffity of attempting the dif* covery by my own experiments;