Opals from a Mexican mine.

The greatest of the Gods is Quetzalcoati.--The water lady.--The mysterious disappearance of Mrs T. Tompkins Smith.--The vision of Don Juan on the Piedra de los Angeles.--Cosmopolitana mexicana.

Sight distance requirements at lane closure work zones on urban freeways. Interim report.

Texas State Department of Highways and Public Transportation, Transportation Planning Division, Austin

Minés.

Mode of access: Internet.

Requirements for hazardous waste landfill design, construction, and closure.

"August 1989."