Voyage dans les Mers de l'Inde: fait par ordre du Roi, a l'occasion du passage de Venus sur le disque du soleil le 6 juin 1761, & le 3 du meme mois 1769

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This is the account of an astronomer's attempts to observe the transit of Venus between the Earth and the sun which happens twice eight years apart, then not again for a hundred ye ars. He was unable to take measurements on the first date because he was aboard ship. Poor weather prevented his efforts on the second date and the poor fellow nearly went mad. Show more