OCR Text |
Show Dustless Highways Increase, ,' The rapidity with which the AmerW can people are turning to the dustles highway is shown in figures recently, compiled from reports to the United States bureau of mines. The flgureaj show that in the last eight years 5,000,000 tons of asphalt and asphaltla materials have gone into American highways a quantity sufficient for 50,000 miles of roads and streets. Tha asphaltle treated highways In the United Stales, if connected In onei great roadway sixteen feet wide, would twice circle the globe. |