Cecil Clement Longridge – Gold dredging –
Cecil Clement Longridge – Gold dredging – London, The Mining Journal, st edition – XXVII+194 pages – canvas binding – 25 x 16 cm – very good condition: solid yellow binding, titled on the back and front cover, very good paper, immaculate pages. 43 plates outside the text, 7 of which fold out, and 2 large fold-out charts, some pages not cut. XXVII attractive pages of advertisements.Dredging, more and more used today, is an excavation work usually carried out under the water, in shallow water or areas of fresh water, with the goal of collecting the sediment and moving it to a different spot. This technique is used to maintain navigable waterways, and to restore the sand on some beaches where sand has disappeared due to coastal erosion.Captain Cecil Clement Longridge, a specialist in the field, wrote several books on the subject: "Hydraulic Mining", "Glossary of Mining Terms", etc. and this rare "Gold Dredging". Read More