PIERRE de P. RICKETTS, Ph. D. 
JOHN H. BANKS, E. M. 
METALLURGISTS, CHEMISTS AND MINING ENGINEERS, 
Telephone Call, ''39th Street, 143.” 
Cadle Address, "RICKETTS,” New York. 
Cable Codes, 
Clauson-Thue’s "A. B. C.” 
Moreinq’s " MINING,” 
CAST rORTY-N I NTI I GTRCCT, CORNE fi -Of RDURT H AVEbUiE. 
7 
New York,,, S r., 
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