JOURNAL OF RESEARCHES

INTO THE

NATURAL HISTORY AND GEOLOGY

OF THE

COUNTRIES VISITED DURING THE VOYAGE OF
H. M. S. BEAGLE

ROUND THE WORLD,

UNDER THE COMMAND OF CAPT. FITZ ROY, R.N

BY CHARLES DARWIN, M.A., F.R.S.

IN TWO VOLUME S.

VOL. II.

NEW YORK:

HARPER & BROTHERS, PUBLISHERS,

329 & 331 PEARL STREET.

FRANKLIN SQUARE.

Sm1871.

MICROFILMED AT HARVARD

CONTENTS

OF THE SECOND VOLUME

CHAPTER Ì.

Chiloe-General Aspect-Boat Excursion-Native Indians-

Castro-Tame Fox-Ascend San Pedro-Chonos Archipelago

-Peninsula of Tres Montes-Granitic Range-Boat-wrecked

Sailors-Low's Harbour-Wild Potato-Formation of Peat

- Myopotamus, Otter, and Mice-Cheucau and Barking-

bird-Opetiorhynchus-Singular character of Ornithology—

Page 7

-

Petrels

CHAPTER II.

San Carlos, Chiloe-Osorno in Eruption, contemporaneously with

Aconcagua and Coseguina-Ride to Cucao-Impenetrable For-

ests - Valdivia - Indians-Earthquake-Concepcion-Great

Earthquake Rocks fissured-Appearance of the former Towns

-The Sea black and boiling-Direction of the Vibrations-

Stones twisted round-Great Wave-Permanent Elevation of

the Land-Area of Volcanic Phenomena-The Connection

between the Elevatory and Eruptive Forces-Causes of Earth-

quakes-Slow Elevation of Mountain-chains

CHAPTER III.

31

Valparaiso-Portillo Pass-Sagacity of Mules-Mountain Tor-

rents-Mines, how discovered-Proofs of the gradual Elevation

of the Cordillera-Effect of Snow on Rocks-Geological Struc-

ture of the two main Ranges, their distinct Origin and Upheav-

al-Great Subsidence-Red Snow-Winds-Pinnacles of

Snow-Dry and clear Atmosphere-Electricity-Pampas-Zo-

ology of the opposite Sides of the Andes-Locusts-Great Bugs

-Mendoza-Uspallata Pass-Silicified Trees buried as they

grew-Incas' Bridge-Badness of the Passes exaggerated--

Čumbre-Casuchas-Valparaiso

CHAPTER IV.

60

Coast-road to Coquimoo-Great Loads carried by the Miners-

Coquimbo-Earthquake-Step-formed Terraces-Absence of

recent Deposits--Contemporaneousness of the Tertiary Forma-