His description of the descent of the Rio Chinchipé, however, remained unclear. The place Tomependa is not to be found and also the location of Jaen seemed different. Other names like Chuchunga, Cumbinama, Chachapoyas, Escurrebragas and Guaracayo are not on this map.
But most of these names were given on La Condamine’s own map, Carte du Cours du Maragnon (1745), which I found in the book of Neil Safier "Measuring the New World" (Chicago University press, 2008). See maps below.
Only the location of Chuchunga where he arrived on 4 July 1743 remains unclear. La Condamine writes: "Je trouvai a Chuchunga un hameau de dix familles indiennes". Here the indians built a new raft for him, which gave him time to dry his papers that had all become wet when coming to Chuchunga.
Jaen is indicated twice on La Condamine’s map, but neither location corresponds with present-day Jaen west of the Maranon river. Perhaps we can solve this riddle on the spot when we come there next year….
Comparison of corresponding parts of the maps of Samuel Fritz (upper)
and La Condamine (lower)
and La Condamine (lower)
check this links http://calu.ec/bitacora/category/ecuaperu/pongo-de-manseriche and http://www.mininova.org/tor/2590860
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