| Show formation of south african hini mines when th the mines ot of south africa were veil well opened it became easy to observe tha the guptil ted etrata strata ot of the Bub carboniferous measures which were tilted all around the mines as it an upheaval bad had occurred from one tine ce central aral point this was true ot of each mine I 1 and la is exactly what baa has taken place for through the hard and the even measures a above bove it and from borne some unknown source nature la in gome some gigantic gigant lo throe forced up these four pipes as vents of safety a strange material which contained the diamonds it if any overflow of this eruption occurred no signs of it exist now but the overflow may have been washed away by storms into the valley of the vaal river and thus accounted for the pre presence tence ol 01 diamonds there it Is also probable that similar mines exist elsewhere and perhaps in brazil and india they may yet be found the foreign material forced up as described was called blue by the miners oo 00 account of ita its color and is now known to con eist slat of a magne conglomerate with silica ass as a base and contains nearly all the chemical elements known large de bowl bo ders of also occur in the blue which decompose rapi rapidly adly in im scales when exposed to the atmosphere clearly evidencing the action of 0 fire of great anten intensity 51 ity and as if to strangely contradict the volcanic jeanie origin of the min mines pebbles ot of agate eto etc plainly are found side by side with pieces of char charred redwood wood and other organic matter showing plain evidence of beat engineer ing magazine |
