. Acta Academiae scientiarum imperialis petropolitanae . «,V^/ Achi Acad. Iritp. Sc. Pehop. ToTii. M.^. J/. 7a/>. 17 PeUCEIJANUM iFm ^crrv \l ^Hc v.^ /ynj^. Sc. J^c^tropo/. J^J/. Tal JX.

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