Bisbee daily review., 1909-05-09

Ple9Sht SOSl Oi SuppIylnE ar VIII be effected which will be import. ant. Ihe service will also be mulh oetter as there will be plenty of pres sure Tor the drills and other purposes even al the most remote points to which 1t will be forced. The fornda. uon ot the new compressor is a fine one of roomy and substantial charac- Yer and contracted by men employed about the mines where there are many skilled mechanics in this line. The Mexicans are well up in stone and concrete work. and some of the finest dry and wet walls seen any where are found in their country. The concrete is made under well known formulas, and is of the very best. The task ot installing the new compressor will soon be finished
 Scrap Piles Are Classified.
 There's a system observed in the conducting of affairs of the Greene Cananea that is refreshing. Even i1 the matter of scrap We noticed that it vas selected and placed, certain class es by themselves. where the could be easily reached and stock secured with. out pulling over great mass of stuff. h the tearing down of the old plant a great deal of material was obtained that will be valuable for years to come in and about the property A scrap yard has been established and is prop erly handled, as We have described. The very poor waste will be held to b1 used in precipitation plants.
 Oil Tr1ed for Fuel.
 Where oil is being used for fuel there is a complete system of tanks and piping, with plainly marked guages to show the consumption, these being. both upon the main sup ply tanks as well as upon the smaller delivery tanks for the several uses to which it is put In this way very close checking of the consumption can be made, and accurate figures made showing the cost, and arriving at conclusions as 10 the difference in value between oil and coal There seems to be some variance of opinion as to the efficiency and real cost of the two fuels and it will take a lit tie time to work it out. To be able to gain information that means some thing the local management is con dueting its test in a sensible. practi- cal way
 In the coke stocking yard an auto- matic water sprinkler has been pro vided that vets the coke to the de. sired point. This prevents a too early combustion in the furnace and also lessens the danger from fire and waste in the pile
 A new iouadry and machine shop are among the beterments at the plant. The foundry was a necessity. there being duty on castings. but none on pig iron and the making of parts that are frequently duplicated and replaced means considerable where so big a work is in progress as carried on here in the many depart ments going to make up the complete enterprise. In the machine shop there is very good compliment Of tools etc, such as are a necessity.
 At the Concentratcrs.
 At the new mill. designed a few years ago by Dr. Ricketts. they have completed the second section. In the old mill a new and heavier engine has been installed. and two new mills of the Gillian type. devised by Mr. David Cole, in charge Of this depart ment. and who is also the able first assistant to Dr. Ricketts, have been 1laced in the fines department where they are doing excellent service. MT. Cole has also improved the old rolls by his special pattern and which are manufactured at home. At the old mill Q new foundation has been put in, Of stone. replacing the unsound timbers of the former construction. Formerly the water to supply the was brought from Ca. pote and indiana-Sonora mines. but the stoEpage of pumping at these places necessitated a new supply. con. seGuently main was laid from the Cananea Duluth through which water was lifted to tanks at the Cobrs Grande, from which later point 1t comes to the works by gravity. This line has q length of 6.735 feet and is made up of F and f0-inch pipe. Water Is also being lifted from the main arroyo 12.090 feet below the concen- trator by electric pump. From this line 250 gallons of water are being delivered Der minute at a cost of ,ents per 1000. Water has also been developed in Puertocitos creek by a bedrock cut 300 feet long and a bed 'ock tunel of 40 feet. led by a steel lume 5.2S5 feet long over the divide wood pipe line I2.0O0 feet in iensth with this Hume leading the water by gravity 10 the stump tanks It the concentrator. .ThJs i- will Je cen that very large expenditu @ las been made for the securing Of a table and sufficient water supr.y. III the cost has been charged 10 tie of the ore Gnd makes his item particularly high at this ime. With the cost charged off there 'ill be a much better showing in this ranch.
 Eight Aldrich triplex pluncer umps have been ordered to replace he centrifugal pumps now used, the alter being too expensive to operate he new ones will all be installed fin he near future.
 At the crushing plant condenser nd cooling system has been installed nd condensing systems for the con mills will be put in this ummer.
 To Build a Dam.
 Dr. Ricketts and his assistants hays cen planning for some method to ave the copper that escapes in thc limy ores. A portion of the ores Of he Oversight, one of the largest ore eposits in the camp. carries cousid rable clay which makes shines and
 lCnr ,.nnad on Dau. q-g.