194 



SEASON 1875-76. 



being fed by a trough, and the fourth was fed from No. 3. The 



trough was built of flooring, 

 and was set level across the 

 endsofthethree20-feets. The 

 oldest 20-feet was deepened 

 by planting a plank on its sides 

 to make it the same depth as 

 the rest. The trough received 

 the 10-inch pipe, and three 

 cuts were made correspond- 

 ing to the ends of the three 

 ponds (Figs. 143, 144). These 

 cuts were each provided with 

 a shoot to distribute the water 

 evenly on the inlets of the 

 ponds. A hole was bored in 

 the bottom, and fitted with 

 a plug, to clean the trough. 

 The other end of the pond 

 was provided with a sluice to 

 discharge into a long aque- 

 duct leading from the end of 

 the 12-inch pipe. The water 

 could thus all be turned into 

 the large ponds when the 

 20-feet were not in use. 



A trap-box passed under 

 the ends of the three 20-feets 

 to catch the waste water, and 

 a drain also led to the bum, 

 so that the dirty water, when 

 cleaning, could be directly 

 discharged. A board fitted 

 at the end of each pond 

 directed the water into the 

 drain, or into the catch-box, 



FIG. 143 scale 



FIG. 144 Scale 



