WALLS AND HEDGES 8i 



be taken to lay the tiles (which are cambered) with 

 their edges sloping downwards ; and where tiles with 

 " nibs " are used these may be left on the lower 

 course to add to the interest. A double course of 

 stout slates can be used in place of tiles, and the 

 coping-bricks can be rounded or chamfered instead 

 of being square. A moulded stone coping or one 

 of flat York stone is quite serviceable; but it is 

 important when the stone projects to see that its 

 depth is not great, otherwise it will appear heavy. 

 Refinement in the projecting lines of a coping is as 

 important as refinement in the eaves of a building, 

 and although a cornice may be in certain positions 

 of considerable size it should be divided into several 

 members of which the one with the greatest pro- 

 jection should be thin and clear-cut against the sky. 

 Thus, there are many copings which are built up 

 like miniature roofs over walls, some thatched, 

 some tiled, and others of chamfered brick or stone. 

 In each case the same rule holds good, the part 

 defining the projection requiring a clear thin line. 

 A very thick wall will, of course, take a heavier cop- 

 ing than a thin one, but more judgment is required 

 in adapting the size to the varying heights than to 



