CHAPTER 2.
Reading edition
Commence journey up San Juan river.—Palms and wild canes. —Plantations.—The Colorado river.—Proposed improvement of the river.—Progress of the Delta.—Mosquitoes.—Disagreeable night. —Fine morning.—Vegetation of the banks.—Seripiqui river. —Mot-mots.—Foraging ants: their method of hunting.—Ant-thrushes. —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.