Amateur mechanics ... a book for old and young who like to make things .. (1907)
Popular mechanics magazine, Chicago. [from old catalog] · Chicago, Popular mechanics · leaf 23
to h m an un-broken film. The recipe for silvering the speculumis: Solution A : Distilled water \ <*• Sliver nitrate 100 gr. Solution B Distilled water I 01 Caustic stick potasb (pure by alcohol).100 gr. Solution C :Aqua ammonia. Solution i> Sugar loaf Nitric acid Alcohol (pure) 25 dr. Miz… … Details of Telescope Construction pour the rest into the empty dish ; addthe ammonia solution drop by drop:a dark brown precipitate will form andsubside; -top adding ammonia solution as B i as the hath clears. Then add solut imi \k then ammonia until hath isclear. Now add enough of the solutionA,…
Handicraft · Amusements
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
