2510 A "hop" to Uruguay (2nd time) and back to Argentina. (6th time)
2511 Adobe single-dwelling bird-nests.
2512 Wooden multiple-dwelling bird-nests.
2513 Excellent road-signs, trying to make up for the awful ones.
2516 Northern Mesopotamia: solitary redoubt against foreign vulgarity.
2516 A mechanical disaster, avoided at the last second.
2519 Snake-venom extracting, and other ophidian facets.
2523 Time-gap: paddle-wheel ships.
2523 Space-gap: "creolized" Asians.