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FARM DEVELOPMENT 



and roads leading to the country from large towns, and 

 prominent roads between towns, on which the travel is 

 sufficient to warrant the county and city, aided by the 

 state, to make stone roads, still, owing to the cost, this 

 form of structure can be used on but a small proportion 

 of our roadways. We must be content to use gravel on 

 many of our improved roads, only slowly changing the 

 most important roads to macadam. 



Wood and metal are used to a small extent in making 



Figure 209. Wheelers, and plow, carrying earth from cut to grade. 



roadways. Wood lacks the quality of endurance, and 

 is becoming more expensive. Iron is very desirable, but 

 its great cost precludes its use except in very limited 

 quantities in special cases. Artificial stone, such as is 

 used in city streets and walks, has not been found prac- 

 tical for country roads. Paving brick, however, is com- 

 ing into use in some important roadways, and is, no 

 doubt, destined to be of great use in road making. This 

 material, laid in strips 8 or 10 feet wide in the center, or 

 at one side of the center, of the road, makes a very satis- 



