. Acta Academiae scientiarum imperialis petropolitanae. Science. -Q—Q a_. .T, Fia . cf . ^C. 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 akademia nauk (Russia). Petropoli, Typis Academiae scientiarum
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