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edifices^ of which we now find the ruins from 
the province of Caxamarca^ the southern limit 
of the ancient kingdom of Quito, as far as the 
mountains of Los Pastes. Among these edifices 
one of the most celebrated, and the best pre- 
served, is that of Callo, or Cazo, described by 
La Condamine, Don Jorge Juan, and Ulloa, 
in their travels to Peru. The descriptions of 
those travellers are very imperfect ; and the 
drawing of the house of the Inca, made by Ui- 
loa, is so unlike the plan on which it was really 
constructed, that we are almost tempted to think 
it is merely imaginary. 
In the month of April, 1802, in an excursion 
to the volcano of Cotopaxi, M. Bonpland and 
myself visited these slight remains of Peruvian 
architecture, and I sketched the edifice represent- 
ed in the 24th plate. On my return to Quito, I 
showed my sketches, and the plate contained in 
Ulloa’s Travels, to some very old monks of the 
order of St. Augustin. No person was better 
acquainted than themselves with the ruins of 
Callo, which were situate on ground belonging 
to their convent ; they formerly inhabited a 
country house in the neighbourhood ; and they 
assured me, that since 1750, and even before 
that period, the Inca’s house was always in the 
same state as at present. It is probable, that 
. Ulloa wished to represent a monument repaired ; 
and that he imagined the existence of inside 
