30 
was dragged in chains to Carthagena, and thence to a prison in 
Cadiz, under the false accusation of revolutionary principles. 
After his innocence had been acknowledged, the Minister of State 
Don Mariano de Urquijo conferred on him the superintendance 
of the Cinchona forests. I travelled with him upon the Magdalen 
River, during which time his amiable son made several drawings 
“of plants for me. The father stepped forth betwixt M. Mutis 
and M. Lopez. As the specific characters of the species of Cin- 
chona excited the bitterest disputes between Zea, Ruiz, and 
Pavon, at Madrid, so. the Cinchona bark, ever since its. first 
disco ery, has been an odious object of persecution in Santa Fe. 
T have learned with great regret, that soon after I left South 
America, M. Derieux had lost his salary, and. had even) been 
compelled to leave the vice-royalty, so that the Cinchona trees 
again grow without any superintendance, which, indeed, has 
hitherto not promoted their increase or preservation, : 
In this simple historical narrative we have shown, that till 
‘the year 1772 all Cinchona bark was collected in the forests of 
Loxa, Ayavaca, and Jaen de Bracamoros, consequently between 
the 3rd and 5th degrees of south latitude, and that only 
from the year 1772 the medicinal Cinchone on the South 
American continent became used in the northern hemisphere ; 
which species of Cinchona were discovered between the 4th and 5th 
degrees of south latitude. Until then, none were known in Peru 
Proper, especially in the mountains situated nearer to Lima, the 
capital. The vale of Rio Calvas, and the village Ayavaca, in 
whose neighbourhood the Cinchona Condaminea grows, famed 
since the year 1738, belong indeed in a political respect. to 
Peru, but both are situated close to the confines of the corregi- 
ment of Loxa; and the bark of Ayavaca, like that of Jaen, was 
sold by the name of Cascurilla fina de Unitusing as well as 
that which was we im Payta. 
