30 JUNE 1832, Page 12

A working model of a copper-mine exhibiting at Exeter Hall,

is a highly interesting and ingenious piece of mechanism, which gives a vivid representation of the whole process of the works of a mine, both above and below ground. You see the men at work in the various levels, with hammer and pick-axe breaking up the ore ; which is then raised by buckets up the shaft, or in waggons on a railway on an inclined plane, to the surface; where it is broken, ground, sifted, sorted, and the refuse pounded to dust. The water-wheels, steam-engine, and capstan, are all worked by means of real water, as they say at Sadler's Wells. The model will greatly amuse as well -as inform the young ; and all, little holyday- folks should be indulged with a sight of it.