Show miner minces cradlin the cradle Is a simple appliance for treating pay dirt earth und and gravel containing gold dust it consists essentially of a box mounted on rockers and provided with a perforated bottom of sheet iron in which the pay dirt la Is placed water Is in poured on the dirt and the rocking motion imparted to the cradle causes the finer particles to pass through the perforated bottom onto a canvas screen and thence to the base of the cradle where the gold dust accumulates on transverse tr anverse bars bare of v aud jud called riffles rif Orif fles fies 11 |