WATERING THE PARKS. 47 



alluvial, and therefore irrigation is only necessary in very 

 hot weather, whereas the soil upon which the artificial 

 grass is planted is nearly all sand, and the greatest care is 

 required to keep the turf in order. The total cost of the 

 arrangements of conduits and pipes for the supply of water 

 to the Bois and the avenues leading to it is given at 

 l,520,000f., or 60,800Z. ; the number of stop-cocks is 385, 

 and of hydrants 1600; and the length of the conduit is 

 66,200 metres. It results from these figures that the cost 

 of the whole has amounted to 22f. 97c, or about 18s. 5d. 

 per metre. 



