. Acta Academiae Scientiarum Imperialis Petropolitanae. Qu T T 3C c o Zy *?. B JK. H G J&/0. 3t nsr j± -TL. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Imperatorskaia akademiia nauk i khudozhestv (Russia). Petropoli

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