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Philosophy icon in the same style as the other "P_" icons.   Rex, the copyright holder of this work, hereby publishes it under the following license:

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following images: File:P_philosophy.png licensed with Cc-by-sa-3.0-migrated, GFDL 2005-08-23T21:59:21Z Rex 77x68 (2740 Bytes) Philosophy icon in the same style

and Ether, p.20 figure 1.png On the light thrown by recent investigations on Electricity on the relation between Matter and Ether, p.20 figure 2.png

English The illustrated first page of the poem "Of Writing" from Proverbial Philosophy by Martin F. Tupper