Arizona republican., 1913-10-20
Coincident With Big Con- vention in Quaker City Will Be Held First Ma tional Mining Exposition Given in United States
WILL EXEMPLIFY
 "SAFETY FIRST"
Demonstrations Will Be Made by Trained Rescue Crew Sent to the Conven- tion Under Direction of Bureau of Mines
Special to The Republican,

Especial to The Republican,
 PHILADELPHIA, Oct. -19.-Prom inent mining men from all over the country and several representatives from foreign lands will be present at the annual convention of the Ameri- can Mining Congress to be held in this city beginning tomorrow and continuing throughout the week
 COincident with the mining con vertion there will be held here the first national mining exposition ever given in the United States. This ex- position, under the auspices of the American Mining Congress. will em- phasize the safety first movement, showing what has been done and what is being done to reduce the death toll of the mines.
 Mining men from every state have announced their intention to be pres ent. There will be a delegation from Alaska to tell the story of the all legged bottling up of the natural re- sources of that country by the gov crnnent. The Chicago delegation will include E. T Bent and Carl Scholz two of the leading coal operators of the middle west. From Denver will come D. w. Brunton, president of the congress. and a leading drainage ex- pert heading a large delegation. From the nations capital will come John Hays Hammond, Hennen Jennings. and Gardiner Williams, who became mulumillionaires in South African gold and diamond mining. Among others who will come are Senators Skafroth of Colorado, Walsh of Mon tana dnd Sutherland of Utah; Chair man Forest and other members of the house committee on mines and mining: Secretary of the Interior Lane, if his health permits: Secretary of Labor w B. Wilson; Dr. Joseph 4. Holmes, director of the bureau Of mines: Dr. George Ots Smith. di rector of the geological survey. Pitts burg wIll be represented by a delega ton cf the biggest bituminous coal perators of the country, headed by John Fl. Jones, president of the Pittsburg Buffalo Coal company. More than fifty of the best known mining engineers of the country will cou7e from New York, these men re- presenting great mining corporations. Among these will be pr. James Doug las. 6ean of the mining engineers: :. Parke Charming and w. R. Ingalls, It will be the greatest rally of mining men ever held in the United States
 The mining industry is second only to agriculture. with an annual output of S2,V00 900, GOO. It employs directly 15OO 900 men, while 100000 men handle it's raw products. The output of the mines constitutes 65 per cent of the freight traffic of the country. An attempt is to be made at this gathering to impress upon the coun- try the magnitude of the industry and to show what progress It is rlaking.
 The exposition in Horticulaural hall, under the direction of Richard l. Humphrey. of Philadelphia. will show what is being done by the mining industry to reduce the number CT deaths in the mines. The oxygen helmet which permits rescuers to enter mines filled with deadly gases following explosions will be demon strated by a trained crew from the bureau of mines The basement or the hall has been fitted up to resem- ble a coal mine for the occasion. There will be an air tight room With glass sides, to be filled with smoke, and the rescuers will work in the stifling vapors. The resuscitaunS device which is said to have saved