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John Briggs Spectroscopy Demonstration

John Briggs set up a spectroscopy lab in the meeting hall.
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John Briggs demonstrating his spectroscope.
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John Briggs shows an antique spectroscope used for microscopy.
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John Briggs shows an antique spectroscope used for microscopy.
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Frank Seagrave's Browning Spectroscope, part of the original equipment that he used with the 8 1/4
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John Briggs stands next to his 5
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John Briggs' 5
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