PREFACE PAGE V✦

CHAPTER I.✦

DISCOVERY OF PERUVIAN BARK.

The Countess of Chinchon--Introduction of the use of bark into Europe--M. La Condamine's first description of a chinchona-tree--J. de Jussieu--Description of the chinchona region--The different valuable species--The discovery of quinine 1

CHAPTER II.✦

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

CHAPTER III.✦

Rapid destruction of chinchona-trees in South America--Importance of their introduction into other countries--M. Hasskarl's mission--Chinchona plantations in Java 44

CHAPTER IV.✦

INTRODUCTION OF CHINCHONA-PLANTS INTO INDIA.✦

Preliminary arrangements 60

CHAPTER V.✦

Islay and Arequipa 69

CHAPTER VI.✦

Journey across the Cordillera to Puno 88

CHAPTER VII.✦

LAKE TITICACA.

The Aymara Indians--Their antiquities--Tiahuanaco--Coati--Sillustani --Copacabana 108