ADVERTISEMENTS 



P. &B. Insulating Paper 



ROR GOLD STORAGE. 



Absolutely air tight and moisture proof. No 

 tar; entirely odorless and tasteless. The most dur- 

 able and effective papers 

 made for insulating- cold stor- 

 age building's, cars, etc. 



P. & B. PAINT5 



For coating- all wood or metal 

 exposed to dampness, acids or 

 alkalies. A positive preservative. 



THE STANDARD PAINT COMPANY 



Chicago Office, 189 Fifth Avenue 81-83 John Street, NEW YORK. 



CompoBoard -Air Tight 



T f t , Waterproof 



For Insulation... 



One thickness of 



COttlpO=DOcircl equal in efficiency to two courses of 

 matched lumber with paper between. 



COMPO=BOARD is but a quarter of an inch in thickness while two 

 courses of ceiling- are one and three-quarters inches. 



Space saved by using Compo-Board 

 One and one-half inches 



.... This means that you can save enough space, 

 which represents money value, by the use of Compo-Board in place 

 of matched stuff, to pay the total 'cost of insulating-. 



For full information address 



NORTHWESTERN COMPO-BOARD CO. 



MINNEAPOLIS, MINN. 



