Patented 1917. 



KORRUGO is the new, perfected Creosoted Wood Block that 

 solves the expansion, weight and other problems that 

 beset the paving engineer. It is the scientifically designed 

 Block for Interior floors and for paving under all forms of 

 traffic; "silent, everlasting." 



Creosoted wood forms of all kinds from one of the largest 

 plants. 



PACIFIC CREOSOTING CO. 



Northern Life Building 

 SEATTLE 



Make Wood Construction as Safe as any So-called Fire-Proof Building 



Material with 



ROCKWOOD SPRINKLERS 



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Mean Economy in Building Construction, Minimum Insurance Bates, 



Protection to your Business for the Disrup- 

 tion of Fire. 



The Rockwood 

 Fireman Says: 



"For the benefit and development of the 

 timber industry advocate wood-construction 

 protected by Rockwoods." 



Rockwood Sprinkler Co. 



532 First Ave. S. 

 Seattle 



90 



