. comptesrendusheb75acad. es naturelles. ( 73o ) » I,e fil nord-ouest-sud-est, dans ces quatre clichés, fait, avec le cercle i\e déclinaison, un angle de l\^°^6\. 8 aoûi, 7''j(j"'. g aoiil, 7'' ib". 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 nce Periodicals; dicals.

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Keywords: ., book, bookcentury1800, bookdecade1870, bookpublisher, bookyear1872