THE VALUABLE SPECIES OF CHINCHONA-TREES--THEIR HISTORY, THEIR
DISCOVERERS, AND THEIR FORESTS.
I. The Loxa region and its _crown barks_ 21
II. The "_red-bark_" region, on the western slopes of
Chimborazo 26
III. The New Granada region 27
IV. The Huanuco region in Northern Peru, and its
"_grey barks_" 30
V. The _Calisaya_ region in Bolivia and Southern Peru 35