CHAPTER X. The Rabbit.--Wild Potatoes.--A difficult Path.--An extinct Crater.--Hoar-frost.--The Torrent.--The Fawn.--The Tettigones.--Dragon-flies. 148 CHAPTER XI. A blue Lizard.--The Guava-tree.--A Cataract.--Nest of yellow Serpents.--A vegetable Helmet.--The Kingfisher.--Hunting Water-fleas.--The Tadpole.--A Collection of Water-bugs. 164 CHAPTER XII. A Relation of Gringalet.--Our four-footed Guide.--A Review of our Party.--The Alligator-tortoise.--The Pheasants.--The Magnolia.--The Nutmeg-tree.--The Blue-plant.--The Caterpillar. 182 CHAPTER XIII. The Sensitive-plant.--Gringalet and the Porcupine.--The Mexican Chameleon.--The Kite and the Falcon.--An amphisbaena Snake.--A Council of Turkeys. 196 CHAPTER XIV. The Meteor.--God Almighty's Lanterns.--The Skunk.--The Jalap plant.--An aerial Journey.--The Orchids.--Bivouac in the Mouth of a Cave.--Gringalet and the Beetles.--A White Ants' Nest. 211 CHAPTER XV. Our Substitutes for Lamps.--First Glance into the Cave.--The Elaterides.--The Gothic Hall.--Stalagmites and Stalactites.--A Chichiquimec Cemetery.--The "Tree of St. Ignatius."--The Opossum and its little ones. 235 CHAPTER XVI. The Earth-nuts.--A Wild-cat's Feast.--Another exploring Expedition to the Cave.--The Bats.--Excavations in a Tomb. 255 CHAPTER XVII. A forced March.--Wild-ducks.--Vegetable Soap.--An unwelcome Guest. 269 CHAPTER XVIII. Wild Dahlias.--A painful Misadventure.--The Euphorbia Plants.--The Washer Raccoon.--Surprised by a Torrent.--L'Encuerado turned Hat-maker.--New Method for driving out Evil Spirits.--The Anhinga. 282 CHAPTER XIX. The Black Iguana.--Another Country.--Reminiscences of Childhood.--The Mirage.--A Fire in the Plain. 299 CHAPTER XX. The Morning and Night Dew.--The Terre-Froide.--Water-spouts and Whirlwinds.--The Barbary Fig-trees.--The Cactus-plants.--The Viznaga.--Our Hopes disappointed.--Don Benito Coyotepec. 310 CHAPTER XXI. Black Skins and white Skins.--We have to turn Carpenters.--L'Encuerado chanting and preaching.--The Palm-leaves.--Vegetable Butter Tree. 326 CHAPTER XXII. Mexican Oak-apples.--A Stream lost in an Abyss.--The Wild Nasturtium.--Sportsmen deceived by Children.--The Grave-digging Beetles.--The Cochineal Insect.--Mexican Wine.--Good-bye to our Indian Hosts. 339 CHAPTER XXIII.