* * * * *
Minor Queries.
_Hardening Steel Bars._--Can any of your readers inform me how thin, flat,
steel bars (say three feet long) can be prevented from "running" crooked
when hardened in water?
W. R.
Notes and Queries, Number 168, January 15, 1853 A Medium of Inter-communication for Literary Men, Artists, Antiquaries, Genealogists, etc. · 第 54 / 116 题