The water is pumped up from the Artesian well by a small 

 engine in the back part of the Conservator}'^, which draws about 

 100 gallons in a minute, and empties it into the system of 

 pipes or arteries by which all the basins and canals are con- 

 nected together. Close beside the Artesian well, and also in the 

 Conservatory, a powerful Appold pump is placed, connecting the 

 two ends of these pipes together. When the whole of the 

 pipes and basins are full, the Appold pump is set in" motion. 

 One condition of its doing its duty is, that these pipes and 

 canals be full of water, as the pump has to set it in circulation, 

 and, of course, unless they are fuU that cannot be done. 



The principle of circulation is similar to that in our own* 

 bodies. One great aorta leads down to the reservoir, in the base 

 of the Memorial of the Exhibition of 1851, on each of the four 

 sides of which there is a broad low arch, within which the water 

 pours from the reservoir, forming four falls, facing respectively 

 each quarter of the compass, North, East, West, and South. 

 Issuing thus, in a mysterious way, under and within the arch- 

 way, it is received by a basin which communicates with all these 

 falls, and conducts the water to the front, where it pours itself 

 in a fine sheet into a second large cup or basin, over the lip of 

 which it falls in a stiU larger sheet into the great basin itself. 

 The water in it flows over into pipes on each side — like the 

 arteries leading to the limbs in the body — ^which pipes lead to 

 the small basins between the canals. After receiving an ad- 

 dition there from the jets (worked separately and independently 

 by the small engine), it overflows into a reservoir behind each 

 basin, from which it again flows into a pipe emptying itself by 

 a cascade into the canals. At the other end of these it over- 



