BUILDING TRAFFIC-PROOF ROADS 
In Tai'via we offer to road engineers the cheapest, the best and the only well-proven 
means of preventing the formation of dust and preserving the surfaces of macadam roadways 
which are subject to heavy traffic. Oil and the various chemicals that mix with water are 
not cures, but mere palliatives. They suppress dust for a limited period only. Tarvia pre- 
vents its formation and saves the roadway, for dust is waste. 
Tarvia may cost slightly more than these other materials. It is heavier, denser and 
more effective. The others do not prevent the steady pulverization of the road, whereas 
Tarvia enables a road to resist this action. T soaks deep into the macadam and hardens, 
making a very tough, elastic matrix around the fine stone particles. The surface is tough, 
durable and resilient. It is the only form of macadam roadway that can withstand auto- 
mobile traffic. 
The cost of maintenance with Tarvia, especially under heavy wear, is less than 
maintenance with water sprinkling only, and is vastly more satisfactory. It is a matter of 
building a traffic-proof road versus building a “one season” highway. 
Booklets on request. 
Barrett Manufacturing Company 
New York 
Cincinnati 
Chicago 
Minneapolis 
Philadelphia 
Pittsburg 
Boston 
St. Louis 
Kansas City New Orleans 
Cleveland 
London, Eng. 
