and engineering journal . the lava has caused the red brickappearance of the most favoured ground sought cut by theexperienced diamond seekers. When the pseudo-lime forma-tion is found to be favourable to the recovery of diamonds,these phenomena are due to the lava being subjected tosulphuretted influence during the passage of the flow, whichhas converted the lava into a compact sheet of hard orvariable soft lime in appearance. The pebbles are herein situ in the lava from which they have segregated andremained embedded in the flow. The lava of the redground has disintegrated under su
and engineering journal . the lava has caused the red brickappearance of the most favoured ground sought cut by theexperienced diamond seekers. When the pseudo-lime forma-tion is found to be favourable to the recovery of diamonds,these phenomena are due to the lava being subjected tosulphuretted influence during the passage of the flow, whichhas converted the lava into a compact sheet of hard orvariable soft lime in appearance. The pebbles are herein situ in the lava from which they have segregated andremained embedded in the flow. The lava of the redground has disintegrated under sub-aerial influences, leavingthe gravel free in the friable soil. A Scientists Goal of Success. Crystallography of the diamond, as pertaining to themanner of crystallisation of the alluvial gem by nature, isa subject which has now passed from the hypothetical tothe substantive. The discoverer, who has surmounted theconsidered impossible achievement of discovery and recogni-tion of the birthplace of the diamond, has reached the goal. JOuTH AFRICAN ENGINEERS ^ED TRADES directory PRICE 3Q/- 1921-22 NOWREADY Including a CompleteMining Directory of South Africa PUBLIC SUPPLY UNDERTAKINGS RAILWAYS TRAMWAYS SUGAR MILLS &c. &c. Published Mining & En-gineering Journal Stock Exchange Building Johannesburg of sin ss which has been to the scientist, geologist, and others the ambition and desire of a lifes interest. Themystification i I the origin of the elusive gem bas heldmost thoughtful of men bound to con visionary alchemy, Nature has hidden hei i I in diversification andin the manner which crystallisation has been varied. Thishas rendered the discOverj mote elusive than the gem rDiversity as existing bejbween byp< thesis and natures simplemode of crystallisation is set forth in the fulness of imagina-tion by Sir William Crookes:— I have done m\ best toexplain the fiery origin of the diamond, and I ? the glowing, molten, subterranean furnaces where thej first beginmysteriousl
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Keywords: ., bo, bookcentury1800, bookdecade1890, booksubjectmineralindustries
