The SciencesOn the Hardening and Tempering of SteelBy W. C. Roberts-Austen on October 26, 1889AdvertisementABOUT THE AUTHOR(S)Recent Articles by W. C. Roberts-AustenThe Reduction of the Rarer Metals from their OxidesThe Effects of Alloys on the Mechanical and Physical Properties of MetalsThe Effects of Alloys on the Mechanical and Physical Properties of Metals