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Proceedings of the Delaware County Institute of Science, Volume 10, Issue 2
Delaware County Institute of Science (Delaware County, Pa.)
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Science
- 1947 -
56 pages
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Proceedings of the Delaware County Institute of Science, Volume 10, Issue 1
Delaware County Institute of Science (Delaware County, Pa.)
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Science
- 1942 -
60 pages
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Proceedings of the Delaware County Institute of Science, Volume 7
Delaware County Institute of Science (Media, Pa.)
- 1914 -
110 pages
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Proceedings of the Delaware County Institute of Science
Delaware County Institute of Science (Delaware County, Pa.)
,
Carolus M. Broomall
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Quaker scientists
- 1906
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