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Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve ...

Excerpt from The Blasting of Rock in Mines, Quarries, Tunnels Etc: A Scientific and Practical Treatise for the Use of Engineers and Others Engaged in Mining, Quarrying, Tunnelling, & and for Mining and Engineering StudentsIt is a remarkable fact that the theories of rock blasting which have been generally adopted, do not take into account the in¿uence of the form of the chamber employed, seeing that the initial force of the blast, and the resi...

Excerpt from The Blasting of Rock in Mines, Quarries, Tunnels, Etc, Vol. 1: A Scientific and Practical Treatise for the Use of Engineers and Others Engaged in Mining, Quarrying, Tunnelling, &C., , And for Mining and Engineering Students, The Principles of Rock Blasting and Their General ApplicationIt is a remarkable fact that the theories of rock blasting which have been generally adopted, do not take into account the in¿uence of the form of t...

Excerpt from The Blasting of Rock in Mines, Quarries, Tunnels, Etc, Vol. 1: A Scientific and Practical Treatise for the Use of Engineers and Others Engaged in Mining, Quarrying, Tunnelling, &C., , And for Mining and Engineering Students, The Principles of Rock Blasting and Their General ApplicationIt is a remarkable fact that the theories of rock blasting which have been generally adopted, do not take into account the in¿uence of the form of t...

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Excerpt from The Blasting of Rock in Mines, Quarries, Tunnels Etc: A Scientific and Practical Treatise for the Use of Engineers and Others Engaged in Mining, Quarrying, Tunnelling, & and for Mining and Engineering Students It is a remarkable fact that the theories of rock blasting which have been generally adopted, do not take into account the in¿uence of the form of the chamber employed, seeing that the initial force of the blast, and the re...

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PREFACE TO THE SECOND EDITION IN this Edition there has been added miscellaneous matter in the Addenda relating to the following subjects Crater Forms and the Influence of Flexure thereon Prof. Hofers Theory of Blasting and Military Mining Relation of Explosive Force to Resistance of Rock The Best or Most Economical Length of Borehole Charge Safety Explosives and a Special Article to demonstrate the wrong premises on which Prof. Hofers Theory ...

Many of the earliest books, particularly those dating back to the 1900s and before, are now extremely scarce and increasingly expensive. We are republishing these classic works in affordable, high quality, modern editions, using the original text and artwork.