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[William Ramsay, Scottish Chemist; noble gases] Substantial Part of an important Autograph Letter, lacking at least the signature page, on experiments. To Major Cardew (See Note e.)

Note: Sir William Ramsay used electric discharge tubes to isolate argon, neon, krypton, and xenon, observing their distinct light spectra [AI] See Note d. below. Two pages, oblong 12mo, good condition. Dear Major Cardew, | I have just see Readman, about whom I spoke to you in connection wiith...