40 STABLE BUILDING AND STABLE FITTING. 



ends, and junctions of surface gutters. Fig. i8 shows a per- 

 forated gutter brick by the same maker. 

 Drainage of It is not SO easy to combine a complete system of open 

 surface drainage with the best method of paving a loose box. 



Fig. i6. Fig. 17. Fig. 18. 



loose boxes. 



The most natural means would seem to be a central gully, to 

 which the watersheds of the floor may be made to converge with 

 the shortest gradient, and the liquid be got rid of as quickly 

 as possible. By any of the plans shown on Plate 13, A, B, C, 

 or D, the slope of the paving is reduced to the minimum, and 

 the floor of the box when grooved can be made practically 

 level. But there is a great advantage, in a sanitary point of 

 view, in having both stalls and loose boxes free from gulhes, 

 and this the author has endeavoured to obtain in his designs 

 shown on Plates 10 and 11, without making the slope any 

 longer in the loose boxes than in the stalls, by means of open 

 surface gutters. 



The drainage of the loose boxes, shown on Plate 11, is 

 treated in the same way as in the stall <5, on Plate 13, and by 

 this means a very good system of open surface draining is 

 obtained with an easy slope to the principal drain, re- 

 presenting an incline of i in 80. On Plate 10, also, a system 

 of open surface drains is shown, and the slope of the loose box 

 is that of the stalls ; but, as a question of paving, as giving the 

 best foothold upon a grooved floor with the most level surface, 

 the principle of a covered gutter with a fall, or that of a central 

 trap, is undoubtedly the best. 

 Outlets of The square openings in the wall on either side of the door, 



gutters. as shown on Plate 41, through which it is usual to discharge 



the surface drainage into the gully immediately outside, do 



