--They attack the nests of other ants.--Birds' nests, how preserved
from them.--Reasoning powers in ants.--Parallel between the
mammalia and the hymenoptera.--Utopia.

CHAPTER 3.

Journey up river continued.--Wild pigs and jaguar.--Bungos.--Reach
Machuca.--Castillo.--Capture of Castillo by Nelson.--India-rubber
trade.--Rubber-men.--Method of making india-rubber.--Congo monkeys.
--Macaws.--The Savallo river.--Endurance of the boatmen.--San
Carlos.--Interoceanic canal.--Advantages of the Nicaraguan route.
--The Rio Frio.--Stories about the wild Indians.--Indian captive
children.--Expeditions up the Rio Frio.--American river steamboats.

CHAPTER 4.

The lake of Nicaragua.--Ometepec.--Becalmed on the lake.--White
egrets.--Reach San Ubaldo.--Ride across the plains.--Vegetation of
the plains.--Armadillo.--Savannahs.--Jicara trees.--Jicara bowls.
--Origin of gourd-shaped pottery.--Coyotes.--Mule-breeding.--Reach
Acoyapo.--Festa.--Cross high range.--Esquipula.--The Rio Mico.
--Supposed statues on its banks.--Pital.--Cultivation of maize.
--Its use from the earliest times in America.--Separation of the
maize-eating from the mandioca-eating indigenes of America.
--Tortillas.--Sugar-making.--Enter the forest of the Atlantic
slope.--Vegetation of the forest.--Muddy roads.--Arrive at Santo
Domingo.

CHAPTER 5.