Jacques-Marie the Father
Jacques-Marie the Father (1763/1841), is one of the scientists of the Commission of Sciences and Arts having taken part in the Campagne of Egypt carried out by the general Bonaparte.
It is charged by Bonaparte with writing a report on the vestiges of the old channel of the Pharaon Nékao {{II}} (), is improved by Ptolémée {{II}}, between the the Nile and the Golfe of Suez. With his brother Gratien and the engineers who work with him, it proceeds to three levelling campaigns in the isthmus, this under difficult conditions due to the lack of water and the attacks of Bedouins. In the precipitation, it concluded with a difference in level of nine meters between the the Mediterranean and the Red Sea, error which will persist until measurements of Bourdalouë in 1847.
Publications
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Memory on the communication of the sea of the Indies in the Mediterranean by the Red Sea and the isthmus of Soueys , in Description of Egypt, the modern State, divides into volumes, Paris, Imprimerie Panckouke, 1822.
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