
Ib. Phosphorus In Steel (Continued)
January 1893
GB

Iia. Method Of Determining Free Caustic And Carbonated Alkali In Soaps
April 1893
GB

Iib. Method Of Determining Free Caustic And Carbonated Alkali In Soaps (Continued)
May 1893
GB

IIIa. Method Of Determining Carbon In Iron And Steel
July 1893
GB

IIIb. Method Of Determining Carbon In Iron And Steel (Continued)
August 1893
GB

IV. Method Of Determining Sulphur In Steel
September 1893
GB

V. Method Of Determining Sulphur In Pig And Wrought Iron
December 1893
GB
I'm always looking for Pennsylvania documents to add to this archive! If you have anything that you think might be of interest to fellow PRR enthusiasts, let me know about it and we can arrange to get it scanned and added to the site!