TRANSACTIONS OF SCIENTIFIC SECTION. 169 



scarcity, so the machine really used its own water over 

 again, filled up Dr. Stapf s tanks, and as the ground 

 was nearly level, formed a tank on the surface of the 

 ground by making a light embankment, requiring an 

 expense not exceeding $5.00, which would hold all the 

 water it received, and the machine went to work without 

 any trouble after lying several years idle because no one 

 could make the egg stand on end. 



In fact an inch stream of water constantly running in- 

 to the machine kept it fully supplied. I could bring 

 out hundreds of similar instances in my own experience, 

 where men, superior in learning and special skill, failed 

 entirely as managers and mining engineers in charge, be- 

 cause they could not free themselves from the rut they 

 had been trained in and take an impartial and com- 

 prehensive view of every question that came up and use 

 the resources of the surrounding country and the com- 

 bined brains and energies of all interested in the busi- 

 ness to carry it on successfully. 



I will now call your attention to an article in this 

 week's E. <& M. Journal, and to some figures showing 

 the state of the mining stock market, and point out some 

 stocks to illustrate the business financially, and then 

 leave the subject open to the society. 



MARCH 8, 1892— EIGHTH REGULAR MEETING. 



Present, Chairman Burgess ; Members Elsworth, 

 Cooley, Reynolds, Sutcliflfe, Winne, R. E. Taylor, Neu- 

 mann, Warring, C. N. Arnold. 



Mr. Edward Elsworth read a paper on " Color Photog- 

 raphy," of which the following is an summary : 



The discoveries in science and great improvements in 

 many methods of mechanical appliances have been so 

 great during the past quarter of a century, and popular 



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