[ 179 ] 



end a weight, chiefly composed of mud, and at the other, 

 suspended from two long palm sticks, a vessel in the form 

 of a bowl, made of basket work, or of a hoop and piece of 

 woollen stuff or leather. With this vessel the water is 

 thrown up to the height of about 8 feet into a trough 

 hollowed out for its reception. The shadoof is thus a 

 combined tera and swing-basket. 



228. The Noria or Bucket-pump is another form of 

 improved Persian wheel, which consists of buckets chained one 

 to another in an endless series and worked by hand or animal 

 power. The following facts and figures taken from the cata- 

 logue of Messrs. W. J. & C. T. Burgess (Victoria Works, 

 Brentwood, Essex, England) give a general idea of the 

 efficiency of this kind of water-lift : 



pT^hr. 20 feet ' 3 feet 4 feet ' 5 feet< ** feet> 7 feetl ^ feet< 



t s. \ s. t s. % s. % s. % s. t s. 

 Single chain ... 1,000 11610 11910 i 22 10 Not intended for gtr. depth than 40 ft. . 



Double 1,000 i 18 3 i 21 9 i 24 15 i 28 i i 31 8 i 34 15 i 38 i 



Single ... 1,500 i 22 o i 26 10 i 31 o Not intended for gtr. depth than 40 ft. 

 Double ,, ... 1,500 i 22 o i 26 10 i 31 o i 35 10 i 40 o 2 45 12 2 50 2 



\ Number of bullocks or donkeys needed. 



229. Wind-mills and aeromotors have been already 

 described in Chapter XI. Full directions for erecting these 

 are given in the catalogues of the Companies constructing 

 and supplying them (Vide Part i of Catalogue No. 29 of 

 Freeman Steel Wind Mills, S. Freeman and Sons, Manu- 

 facturing Co., Racine, Wis. U. S. A. 



230. The Baldeo Balti. An ingenious mechanical adapta- 

 tion of the don (or canoe-shaped water-lift) for watering from 

 small depths, known as the Baldeo Balti, is the invention of 

 Baldeo, the agricultural-mechanic of the N.-W. P. Agricultural 

 Department. It is a double don worked by a single bullock, 

 The bullock goes round and round a tree or post to which 

 the yoke-pole is attached. When one of the ddns rises and 



