Bisbee daily review., 1916-03-19

mond Claim, under the 1900 level ore mentioned above.
 On the 17OO level 67O feet of drift ing was done all south and east from the shaft. No ore has yet been found on this level.
 On the 1900 level 9O2.5 feet of work was done East of the shaft 300 feet a body of sulphide ore was found. It is not very extensive as yet, but the ore is of good grade. Briggs Shaft.
 At this mine the big sulphide ore body just east of the shaft has been nearly exhausted above the 1900 level and We are now mining below that lev q with satisfactory results. The de- velopment work further east on the 1900 and 1400 levels has been very in- teresting We have cut so many small out rich bodies of oxide ore that it now appears another new main ore zone has been found. This work is on the Oakland and Top Gallant Claims. ! On the south end of the Nellie and Hard Cash Claims, on the 1900 and 1900 levels, the ore body reported last year has been mined throughout the year and looks better now for tonnage than il did a year ago. Work on the 1400 level is being run in the direction of this ore. As yet no ore has been found on the 1900 level
 Hoatson Shaft.
 Tn February the motor connection with the Junction Shaft was completed on the HOO level.
 Since that time steady shipments Of ore have been made through the lat i ter shaft The Hoatson shaft proper is now used only for the transportation of men and supplies. ! Development work has shown little and only the remnants of the old rich ore bodies are being are being mined. Two diamond drill holes were put down vertically in the north end of the clain reaching 375 feet below the 1500 level
 One hole cut 15 feet of ore directly below the 14OO level. but the other was barren of results.
 Courtland. ! Leasers shipped 99S tons of high grade oxide during the year to our shelter
 PRODUCTION
 Wet Dry Tons or ore mined e. 729,677 69O.SS1 Tone ore received at i smelter ..... 699.076 660,945 Tons ore sampled ... .69S,657 1852 1 NOTE-29.4 435 wet tons of low grade sulphide were shipped to smelters at Fl Paso and Miami as we received q premium or high iron and sulphide contents.
 NEW CORNELIA COPPER co.
 Process Work. ! Process work was continued through out the year. A Acton experimental plant was completed on January 31st, and immediately put in operation. To December 31st there had been leached 291 charges, or approximately 1922 tons. There were two distinct periods in this work. The first period was from the starting of the plant on February 1st, to charge No. S1. It was then decided to waste the entire col umn of the solution in the system and begin with new solution. Charges Nos. S2 to 90 inclusive were discarded The second period began with charge No. 91 and continued throughout the year.
 Results for the first period were as follows:
 Average heads ......,....... 1.24Sf, Average tails ...... .294%, Average extraction ..........74.4 z Average lbs. per K. w. H. .. 72
 The second period gave the follow ing results:
 ! Average heads .......... 1.337c, Average tails ............ .256@, Average lbs. per K. w. H. .... 95S
 The 1-ton. plant was operated iron August Sth. 1914. to November 3rd 1915, with the following results: Average heads .............. 1.325% Average tails ....... .2S3H Average extraction .......79.0 q, Average lbs. per K. w. H. .... 1125
 In the belief that these results am ply justified the immediate construc tion of the permanent plant, an ap propriation of $4.2OO, ,OOOOO was recon mended in December to the Board anC was granted.
 New Plant.
 The construction work being prose cuted. and which, when completed. vii put the New Cornelia property on a production basis of $6.000.000 pounds of copper per year, may be briefly de scribed as follows:
 This mine will be opened up so that three 100Ion steam shovels can be used for loading the ore into ears. The