WALKS AND DRIVES 27 



binder, well watered and rolled, where traffic is not too heavy, are 

 quite satisfactory. Applications of oil or various commercial prepa- 

 rations for surface treatment aid in preserving the surface and pre- 

 venting dust. 



Bridle paths may be built by simply grading up earth by means 

 of "slip" scrapers or road grading machines to obtain a crown, with 

 reasonable open drainage at the sides. Tanbark makes an excellent 

 surfacing, especially for bridle paths that traverse wooded areas. 



WALKS 



The construction of walks also depends on the use to which they 

 are subjected. For public entrance walks or service walks, brick or 

 cement is best. For recreative walks, brick, crushed stone, gravel, 

 flagstone or turf are most pleasing. 



Brick, crushed stone or gravel walks require good drainage and 

 foundations. Flagstone walks may be laid on the ground if it is in- 

 tended to have grass growing between the stones. If laid with mortar 

 joints a well-drained, frost-proof foundation is required. Rough flag- 

 stones are best for minor traffic or naturalistic effects. Their uneven 

 surfaces are hard on shoe leather. Dressed stone or smooth cast 

 cement is better. Sections of broken cement walk, set in the ground, 

 make acceptable flagstone walks. Stepping stones are more orna- 

 mental than useful unless made sufficiently large and set close enough 

 together to enable one to walk naturally over them. In laying flag- 

 stone walks more than three feet wide, the best method is to lay the 

 center line of stones first, just as you would lay a single line of step- 

 ping stones, using the largest stones at hand. The remaining walk 

 area between these large stones and along the sides may then be filled 

 in with the smaller stones. An effort should be made to have all 

 longitudinal joints parallel the direction of the walk, especially at 



Brick walks may be laid on a cement foundation, with cemented 

 joints, or on cinders or crushed stone with sand cushion and sand 

 joints. The former construction requires very hard brick to insure 

 against shattering under frost action. The latter type may require 

 occasional relaying after a severe winter, and some weeding in sum- 



