Odd Echoes

'Dn. acave in the Pantheon, the guide, bji" striö.dng the flaps of his coat, makes a n 0ise erpual to that produced by firing a 1 #-pottnd cannon. In tlie cave of Smel'án, neiar Vírg, Finlandia stone thrown down a certiain abyss makes a reverberating echo which sorcnds like the d}ring wail of som& wild