state Hij^hway, Wayland, Mass., made dustless'with “Tarvia A” 
DO AWAY WITH THE DUST NUISANCE 
The way to suppress dust is to have no dust to suppress — to prevent its creation by mak- 
ing the macadam capable of resisting traffic without pulverizing. Macadam was invented before 
automobiles and was fairly durable and dustless under ordinary traffic. To-day the traffic con- 
ditions are so much harder that the macadam rapidly disintegrates into dust. Its crying need is 
an additional binder — something to prevent dust and add to its life. Tarvia does both because it 
is poured over the macadam and allowed to solidify there, forming an elastic, durable, water- 
proof matrix. The fine particles of stone are so imbedded in this cement-like binder that even 
automobile tires fail to tear them loose. In appearance a road so treated resembles asphalt, but 
as the surface is slightly absorbent it is more dustless. One treatment, applied like oil, lasts an 
entire season and costs (for the cold application) about $300.00 a mile. The top dressing of fine 
stone can be omitted altogether, as Tarvia performs its functions of shedding water and cushion- 
ing the number two stone well enough. It is cheaper, therefore, to maintain a macadam road 
with dust-preventing Tarvia than with dust-producing stone screenings. 
For parks and boulevards, where the very finest roads are demanded, and for newly con- 
structed streets, we recommend the older style of Tarvia which requires heating before application. 
It makes an ideal, smooth, well bonded road, but of course its cost is a little more. For ordinary 
macadam roads and village streets the cold application will be found perfectly adequate. 
Booklets on Application 
Barrett Manufacturing Company 
New York 
Cleveland 
Chicago 
St. Louis 
Philadelphia 
Pittsburg 
Boston 
Cincinnati Minneapolis 
Kansas City New Orleans London, Eng. 
SB* 
