The above positions from Luxan to Navarro were determined | |in the course of a survey of the frontiers, made in 1796 by | |Don Felix Azara, aided by Cerviño and Inciarte, all officers | |attached to the Commission for laying down the boundaries under | |the treaty, between Spain and Portugal, of 1777. The Statistical | |Register of Buenos Ayres, for 1822, has added to them the | |following:-- | | | |San Pedro |33 40 51| 1 32 0| " | | |Barradero |33 43 50| 1 25 4| " | | |Conchas |34 25 15| 0 10 31| " | | |Pergamino |33 53 16| 2 24 25| " | | |Areco |34 11 57| 1 26 47| " | | |Arecife (Fort) |34 3 8| 2 6 13| " | | |Pilar |34 26 4| 0 52 54| " | | |Cañada de Moron |34 40 45| 0 23 49| " | | |Magdalena |35 5 29| 0 44 0|E. of ditto | | +------------------------+--------+--------+------------+------------------+ No. 7--_continued_. _Observations taken on the Journey of Don Pedro Garcia, in 1810, to the Salinas._