Show LV the SALT LAKE MINING REVIEW 1924 subscription OFFER prospectors FIELD BOOK price will be sent to any new subscriber free who sends us direct AND GUIDE for a two years subscription or for two one year subscriptions FREE to be sent to different addresses this offer is also made to all old subscribers who remit any arrears and send us for 1924 and 1925 renewals osborns osborne Os borns field book was revised and enlarged enlarge dby by M W von bernewitz Be the flie well known von gist and technical journalist in 1923 and is the last word in the easy I 1 determination of ores and other useful minerals ninth edition pages 0 flexible binding pages 4 by T money refunded if not satisfied with book send us a list of your friends and acquaintances who are interested in mining we will do the rest in securing them as subscribers and for every two subscriptions thus secured we will send you the mining review for one year for your trouble the more people that become interested in mining the more our industry will flourish why not help the good cause along NINTH REVISED EDITION ENTIRELY RESET RE SET prospectors prospector s fl field eld book exl 0 an and gu guide i de the last edition of osborns borns Os prospectors field book and guide was published in 1910 it and the previous seven editions were suitable for those times the new ninth edition will be found suitable for the present time while the old time prospector will always be an important factor the knowledge of and search for the common and rarer minerals is bringing out men who are trained to some degree in the field they need a handy and suggestive pocketbook pocket book containing hints on prospecting where to search and how to test couched in simple terms the mining world learned a great deal during the past five years more in some branches than ever before and this knowledge will be valuable for all times it is all incorporated in the new book some idea of the scope of the ninth edition may be gained from the fact that a spiritual introduction emphasizes the necessity of prospectors receiving some technical training the chapter on preliminary instruction covers the fundamentals of a study of the earths crust then follow discussions on practical mineralogy crystallography the value of the blowpipe in prospecting surveying and chemical tests in the field separate chapters are given to the precious and base metals also to the nonmetallic non metallic minerals A general rearrangement arrangement re has been made and the metals or minerals found in association are considered together the chapter on the nonferrous non ferrous or alloy group of minerals is entirely new being the best information available the section on oil has been expanded while the subject of oil shale is new A new and little known yet successful method of prospecting for gold is included while indications for copper receive full attention the chapter on gems in the previous edition has been written rewritten re and condensed on that subject but to it has been added matters concerning gemstones gem stones used for industrial purposes such as abrasives A general chapter covers many useful minerals and salts the old matter being amplified and brought up to date an important guide and suggestive aid throughout the new book are the many brief descriptions of ore deposits of all minerals occurring in scattered parts of the world these have been abstracted carefully and tell how bow certain minerals may be expected to be found no other prospectors book contains this class of information another special feature is the lists of outfits prices and manipulations of the ap pratus in the appendix will be found numbers of useful tables an explanation of the unit system of buying and selling ores and a complete glossary of mining and minerals mineralogical 0 ical terms mr M W von bernewitz Be the reviser of the ninth edition gained his practical experience in new zealand australia dutch east indies and america coupled with contributing many special articles on varied subjects to the technical press when in australasian alasia for six years he be was assistant editor of mining and scientific press of san francisco and one year with the mines handbook of new york while in those positions lie he came in contact with many mining people and was observant and noted what was going on throughout the world keeping fully abreast of the times this is more emphasized in his annual contribution or chapter on gold and silver to the mineral industry which covers progress in technology and statistical data on the industry the ninth edition of osborns osborne Os borns prospectors field book and guide will be found up to date worth while and full value for the ilic money asked address the SALT LAKE MINING REVIEW SALT LAKE CITY UTAH |