WITH NOTES. 



417 



[A Bucket-fountain^] In the present and preceding 

 articles the water is elevated by means of buckets, 

 and it was only while these pages were passing through 

 the press that the author perceived those precise marks 

 of distinction between the two methods of employing 

 the buckets which enables him now to offer the following 

 explanation of each. 



As regards No. 20, it seems, at first, absurd to expect 

 to raise water which is to be in a balance and pass 

 from one bucket to the other. But let us suppose an 

 arrangement, as in the subjoined engraving, where 

 A, B, is a strong vertical wooden frame carrying six 



metal or wooden pipes 

 C, C, which can be 

 moved simultaneously 

 up and down on centres, 

 a, a, being connected 

 by the iron rods, &, b ; 

 these pipes are united 

 with the top of six buc 

 kets at D, D , and with 

 the bottom of six other 

 buckets at E, E . The 

 buckets D, D 7 , are also 

 connected at the bottom 

 with six other pipes F, F, each open at the end F, F, 

 and so arranged that the topmost pipe passes over a 

 pulley c, but the other five pipes with guide rods d, d, 

 at their ends, enter the top end of the five uppermost 

 buckets on the side E ; the pipe F, passing over c, 

 delivers the contents of bucket D, while the lowermost 

 bucket E , is being replenished, &quot; thus the uppermost 

 yielding its water at the same time when the lower 

 most taketh it in.&quot; In the present position of the 

 machine the pipes C, C, are inclined, and the pipes 

 F, F, are horizontal, but when the bucket E is ele- 



2 E 



