1839.] On Wells used in Foundations in Upper India. 333 



Labourers, 9 



2050 bricks, 12 x 6 x 2 . . 10 4 



16 maunds stone lime, . . 6 



Neemchuk or curb, . . . . 2 12 



Total cost, . . 28 0, or per foot 2:12:10 

 giving the average cost of well-sinking, using a cylinder of six feet 

 in diameter and carried to a depth of ten feet at Rs. 4 : 13 : 2 per 

 running foot. In the above table, however, as I before remarked, the 

 items are dependent on difficulties which in well-sinking from a plain 

 surface — from the level of a garden for instance — would not be met 

 with. In wells situated in this way, and of similar dimensions in 

 every respect to those upon which our data are formed, the expense 

 varies at from three rupees six annas to four rupees per running foot, 

 the difference depending on the cost of labourers — the price of materials 

 remaining constant. The masonry of well-building I have generally 

 found to vary from eighteen to twenty rupees per 100 cubic feet. 



In wells of from sixteen to twenty feet depth the expense per run- 

 ning foot has been found to vary from Rs. 7-8 to Rs. 8-8, using the 

 cylinder above noted ; to a greater depth, however, they require to be 

 of larger dimensions ; but it would be interesting to discover the pro- 

 gressive advance in expense on each ten feet of well-sinking ; it would 

 possibly advance in a series with a common multiplier of two, leading to 

 the following table as an approximation — the upper line representing 

 depths of cylinder in feet up to fifty, the second the cost per running 

 foot, and the lower the actual cost of well at each depth as noted in the 

 upper line. 



10 ft. 



20 ft. 



30 ft. 



40 ft. 



50 ft. 



4Rs. 



8Rs. 



16 Rs. 



.... 



.... 



40 Ks. 



160 Rs. 



480 Rs. 



.... 



.... 



The two first columns are formed on my own practical observation, 

 and the third is from the cost of village wells, extracted from the sta- 

 tistical notes of the Revenue Surveyors in the upper portion of the 

 Doab, plus the expense of undersinking the first sixteen or twenty feet, 

 which in village wells is generally built up. Whether the progression 

 which holds in these may be extended further, as I have proposed in 

 the fourth and fifth columns, may be easily shewn by reference to the 

 Engineer officers who built the bridges on the East Kallee Nuddee, 

 and Hindun rivers ; (to Captain Debude, and Lieutenant Alcock, 



* The M.S. is Wank in these spaces.— Eds. 



