Thwe is no more interesting or curious sight on earth than the in terior of the extinct crator,' Aso San, about thirty miles from the city of Kumanioto, in Japan. It is inhabited by 110,000 people who live and prosper within its vertical wall 800 ft. high. The inhabitants rarely make a journey into the outer world but form, as it were, a little nation by themselves. —£ — Trees are now felled in some places by clictricity. A platinum wire, heated red-hot by the curious current is used, stretched between two poles as a saw. There is less work than with a saw, no sawdust is produced, and the charring of the surface of division tends to prevent decay. In sof.ie cases the time re quired to fell a tree by this method is much less than that necessary for sawing,

COPPER THAT CUTS STEEL.
