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/ 17
Abbe-type microscope camera lucida

Abbe-type microscope camera lucida

Bausch & Lomb Optical Company
circa 1929
bottle of ammoniac-nickelous sulfate

bottle of ammoniac-nickelous sulfate

Chemistry Laboratory, Harvard College
late 19th-early 20th Century
bottle of broken limestone

bottle of broken limestone

Chemistry Laboratory, Harvard College
circa 1900
bracket and screws

bracket and screws

French
1875-1900
cathetometer rule

cathetometer rule

S.I.P Geneve
1880
Chinese raw silk dyed with aniline red

Chinese raw silk dyed with aniline red

Chemistry Laboratory, Harvard College
dated 1891
cylindrical bottle filled with iron brads

cylindrical bottle filled with iron brads

Chemistry Laboratory, Harvard College
circa 1900
galvanometer light

galvanometer light

Leeds & Northrup Company
circa 1910
galvanometer shunt

galvanometer shunt

Rubicon Company
early 20th Century
Jones Josephs conductance bridge

Jones Josephs conductance bridge

Leeds & Northrup Company
circa 1940
Kohlrausch drum-type slide wire potentiometer

Kohlrausch drum-type slide wire potentiometer

Leeds & Northrup Company
circa 1920
mounted and sealed specimen of paraffin wax

mounted and sealed specimen of paraffin wax

Chemistry Laboratory, Harvard College
circa 1900
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The Collection of Historical Scientific Instruments
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p. 617-495-2779 • f. 617-496-5794
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