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CRISTAL. {69<br />

eprouver une deviation au plan de la lumiere polamoo,<br />

et ce fait, annonoo, en 1852, en attribue la cause<br />

a l'htimiedrie.<br />

Entin, M. Mistcherlich a pu formuler sa belle<br />

Thiorie dB L'iIomorphisme, deja entrevue par notre<br />

savant Gay-Lussac, basile sur ce que des corps differents<br />

presentent la propriete de cristalliser sous la<br />

meme forme geometrique .<br />

•<br />

to<br />

•<br />

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