CONSTRUCTION OF WALKS AND DRIVES 9 1 



to allow them to turn on a sufficiently large 

 radius to prevent damage to the road surface. 

 The form of the "carriage-turn" is immaterial 

 if it is large enough; but if space is restricted 

 it is better to adopt the circle, or some figure 

 approximating it. 



In the case of a semicircular drive having 

 separate entrance and exit gates, the carriage- 

 turn is unnecessary, but may be retained in 

 some form as a concession to the eye, which 

 naturally looks for a free space opposite the 

 house door. 



I have said that the actual construction of 

 the drive is a question of ordinary road making, 

 and it need not therefore be detailed here. 

 It is only necessary to warn the road maker 

 against the use of improper materials. He 

 should excavate to sufficient depth to permit 

 of a rubble basis, use the best metalling his 

 district affords, and see that it is laid with 

 sufficient camber to throw off the rain-water. 

 On impervious soils it may be necessary to 

 put in rubble or tile drains at the sides. 



I now pass on to paths. 



Gravel Paths — Much depends upon the 

 quality of the gravel. There are gravels which 



