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/ 25
beryllium metal flakes in glass tube

beryllium metal flakes in glass tube

A. D. Mackay
1925-1930
bottle of ammoniac-nickelous sulfate

bottle of ammoniac-nickelous sulfate

Chemistry Laboratory, Harvard College
late 19th-early 20th Century
bottle of cobalt-ammonia sulfate

bottle of cobalt-ammonia sulfate

Joseph Wharton
late 19th Century
bottle of cobalt compound

bottle of cobalt compound

Joseph Wharton
late 19th Century
bottle of nickel sulfate

bottle of nickel sulfate

Mallinckrodt Chemical Works
late 19th-early 20th Century
bottle of nickel sulfate

bottle of nickel sulfate

Joseph Wharton
late 19th Century
cardboard canister of potassium permanganate

cardboard canister of potassium permanganate

American
circa 1920
Chinese raw silk dyed with aniline red

Chinese raw silk dyed with aniline red

Chemistry Laboratory, Harvard College
dated 1891
cork dust

cork dust

Central Scientific Company
late 19th-mid 20th Century
display sample of rubidium sulfate

display sample of rubidium sulfate

University of California Chemical Laboratory
circa 1900
display sample of rubidium sulfate

display sample of rubidium sulfate

University of California Chemical Laboratory
circa 1900
emery abrasive powder

emery abrasive powder

American
circa 1858
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