Construction of Roads and Walks 



good road, because the foundation rock would necessarily be of 

 uneven depth and could not be evenly rolled. Besides, leaving 

 the road-bed uneven would be the cause of greater expense, as 

 the road would, in that case, have to be evened up by rock, and, 

 as the expense of hauling rock is very considerable on account 

 of it generally having to be brought from some distance, it would 

 be much more expensive to fill up a road-bed in this way than by 

 grading it with dirt from the grounds. 



Driveway Showing California Laurel (to Left of Illustration}, and Oaks; 

 also Ivy-Covered Stump. 



The roadbed then being in shape and rolled smooth and hard, 

 the work of setting the bottom rock should be commenced. Any 

 kind of rock will be found good enough for the foundation 

 layer of the driveway, provided it is not over two inches or two 

 inches and a half in diameter. A mixture of all sizes up to six 

 or eight inches in diameter does not make a good roadway, for it 

 cannot be rolled evenly, nor does it form a close finish, as it 



[45] 



