53428.git, branch mainDie Naturwissenschaften in ihrer Entwicklung und in ihrem Zusammenhange, I. Band
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As captured February 7, 20252025-02-07T00:30:42+00:00nfenwicknfenwick@pglaf.org2025-02-07T00:30:42+00:005181b4468126855f87a1eccb7b1004eee1397b0a