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You searched for: Name Helfand, William Remove constraint Name: Helfand, William Subject Scientists Remove constraint Subject: Scientists
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1. Watt.
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Date:
[not before 1832]
Collection:
Edgar Fahs Smith Image Collection (University of Pennsylvania)
2. Sr. Isaac Newton.
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Date:
1748
Collection:
Edgar Fahs Smith Image Collection (University of Pennsylvania)
3. Sir Isaac Newton.
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Date:
[not before 1670]
Collection:
Edgar Fahs Smith Image Collection (University of Pennsylvania)
4. The Hon. Robert Boyle. OB, 1691.
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Date:
[18-?]
Collection:
Edgar Fahs Smith Image Collection (University of Pennsylvania)
5. Sir Humphry Davy, Bart. Pres. R.S. & c.
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Date:
1821
Collection:
Edgar Fahs Smith Image Collection (University of Pennsylvania)
6. James Watt, Esqr. FRL. Etc. Etc.
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Date:
1820
Collection:
Edgar Fahs Smith Image Collection (University of Pennsylvania)
7. The Honble Robert Boyle
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Date:
1800
Collection:
Edgar Fahs Smith Image Collection (University of Pennsylvania)
8. Sir Humphrey Davy
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Date:
182-?]
Collection:
Edgar Fahs Smith Image Collection (University of Pennsylvania)
9. Sir Isaac Newton
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Date:
[between 1790 and 1841]
Collection:
Edgar Fahs Smith Image Collection (University of Pennsylvania)
10. J. Watt.
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Date:
[not before 1801]
Collection:
Edgar Fahs Smith Image Collection (University of Pennsylvania)