ROADS. 183 



Draft in pounds required to draw one ton over roads 

 composed of different materials. 



Various Road Surfaces. 



Loose sand road, 448 



Loose gravel (4 inches) road, 222 



Common gravel road, 147 



Good gravel road, 88 



Ordinary dirt road, 224 



Hard clay road, 112 



Hard dry dirt road, 89 



Common macadam road, 64 



Hard and smooth macadam road, 46 



Asphalt street, 17 



Iron railway, 8 



652. If a team of horses can draw one ton on a loose 

 sand road, how much can it draw on a common macadam 

 road? 



653. Four bales of cotton are hauled over a common 

 gravel roacl. How many bales may be hauled over a 

 common macadam road with the same jforce? 



654. A load of 35 bushels of wheat is hauled over an 

 ordinary dirt road. How many bushels may be hauled 

 over a common macadam road, using the same force? 



