Show RECENT publications utah agricultural college experimental station circulars 11 and 12 on the organization of fruit distribution systems and thinning apples logan utah 12 pp ap and 8 app PP compressed air magazine for july 1913 easton pennsylvania 40 pp ap ill Con contains tans interesting description of the A S cameron steam pump works report of the proceedings of the american an mining congress spokane session november 2529 25 29 1912 denver colorado pp ap monthly statement of coal mine fatalities for the month of may by albert H fay of the united states bureau of mines washington D C 15 pp ap recent advance chapters of the mineral resources of the united states 1912 issued by the united states geological survey are as follows the production of sand and gravel in 1912 by ralph W stone IS 18 pp ap the production of phosphate rock in 1912 by W C phalen 24 pp ap precious and semiprecious 1 metals in alaska in 1912 by alfred H brooks 16 pp ap the production of in 1912 by charles G yale and hoyt S gale 9 pp ap proceedings of the colorado scientific society denver colorado radioactivity radio activity of 01 the mineral springs of manitou Man itou by john C shedd 32 pp ap ill A very exhaustive treaties and record of tests of much interest investigation vesti gation tilon of roof shale dust with reference to its adaptability as a deterrent in coal dust explosions by richard C hills 14 pp ap 4 pl pi report of the committee on uniform mine accident laws pp ap the rhe U S bureau of mines list 21 includes the following bulletin 59 investigations of detonators and electric detonators by clarence hall and R S p howell 1913 73 pp ap 7 pis 5 figs bulletin 61 abstract of current becis ions on mines and mining october 1912 to march 1913 by J W thompson 1913 82 pp ap technical paper 15 an electrolytic method of preventing the corrosion of iron and steel by J K clement and L V walker 1913 19 pp ap 10 figs technical paper 42 the prevention of waste of oil and gas from flowing wells in california with a discussion of special nieth methods used by J M pollard by ralph arnold and nd V R garfias 1913 15 pp ap 2 pis 4 figs technical paper 47 portable electric mine lamps by H H dark clark 1913 11 pp ap miners circular 12 the use and care of minors miners safety lamps by J W paul 1913 19 pp ap 4 figs |