Vietnam or Thailand? Vote for the TOP Country of the Week!
Want to type faster? Practice with a typing test or have fun with typing games!
Updated: July 26, 2026
The layers of the more modern formation lavas and scoriae are horizontal; sheets of sub-columnar, compact basalt have been spread upon and have crushed down to paper-thickness their beds of bright red tufa, here and there white with a saline effervescence. Of such distinct superimpositions we counted in one place five; there may have been many more.
Word Of The Day
Others Looking