123 
cheri, Caxatambo, Tarma, Xauxa, Huancavelica, Huamanga, 
€uzco, Huanuco, Huamalies, Caxamarca, and other parts of the 
kingdom of Peru, and in the neighbourhood of the lakes of 
_ Eauricocha, Yauricocha, and Chinchaycocha, all situated in the 
province of Tarma; the first:scarcely ten leagues distant from the 
second, and the third only four leagues. Yet the waters which 
flow from’ them, and give: rise to the three celebrated rivers, 
Maranon, Huallaga, and Ucayali, run in a winding direction for 
an immense distance, and after a conrse round our extensive 
mountains and those of the natives, the second, which is navi- 
gable for boats and canoes from the strand of the town of Cuchero, 
distant ninety-five leagues from Lima, unites with the first in 
the countries of the Chamicuros and Marinas Indians, and the 
third with them in those of the Omaguas Indians. — 
It is found throughont the: year with fructificatioas or pro- 
tuberances, which in all their states are without integuments. 
The Indians give it the name of Ceallahuala, and the Spamards 
that of fine Calapan ee Fe ee 2 
| : | OBSERVATIONS. a 
Having taken a scruple of this root well bruised, I infused it 
in three ounces of distilled water, which in a short time was: 
tinged of a clear red colour; in two hours it became of a clear’ 
chesnut; but though I kept it two hours longer in cold infusion, 
and shook the vessel from time to time, I perceived no farther 
change in the tint. The flavour of the infusion proved sufifici- 
ently bitter. The oily rancid odour perceptible after bruis- 
ing the root of the Calaguala, was entirely dissipated, and 
only a slight scent proceeded from the infusion. When 
treated with sulphate of iron, the chesnut colour changed 
to a greenish blue, an indication that the root contains an as-. 
