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the project of redesigning the map of his confrere Jesuit Christopher Maire after
more than a century, using the triangulation of Marieni; but this goal was immediately
frustrated by a lack of funds. The remeasurement of the baseline along the Via
Appia Antica can also be seen as a “scientific duty” toward his fellow Jesuits, who
had been heavily criticized by the French.
Fig. 12.5 The Secchi tower at the Frattocchie (Marino) (credit: the Author)
T. Aebischer