1834.] On the mode of raising Water in India, 162 



8. A gentleman at Bellarj' has in his garden two wells, and two 

 Bhowries. In the following experiments the depth of water in one 

 well was 24 feet, and the angle of the inclined plane 14 degrees. In 

 the other the depth of water was 27 feet ; and the inclined. plane 19 

 degrees. The same bucket was used at both wells and the quantity 

 of water each time discharged was 650 lbs. The following was the 

 rate of performance. 



Well, angle 14° . times minutes 



Two pairs of Bullocks raised the Bucket 10 in 5 24 feet high. 



One pair of Do Do 6 in 5 Do. Do. 



Well, angle 19^ times minutes 



Two pairs of Bullocks raised the Bucket 9 in 5 27 feet high. 



One pair of Do Do. ...... 6 in 5 Do. Do 



In both which cases it will be observed that one pair of Bul- 

 locks raise a much larger proportionate quantity of water than two^ 

 pairs. 



9. In another Bhowrie the common every day work was, to 

 raise a bucket discharging 67 1 gallons (689) lbs. once a minute 

 from a depth of 20 feet. The two bullocks worked 8 hours a day 

 and the foregoing had been their daily performance for 6 months 

 prior to the experiment being taken. Angle of plane 19^. 



10. " Three men and two oxen work a mot (Bhowrie) from 

 *' morning till evening with a refreshment of only about |- of an 

 " hour. In a well 33 feet from the surface to the water, a mot in 

 " half an hour drew 7210 lbs." Vol. 2j Calcutta gleanings in Science 

 page 29. 



11. In 1831 I had occasion to ascertain the quantity of water 

 drawn daily for the use of the Government Gardens at Madras, and 

 I found that a pickotta (lever machine) worked by 3 men discharg- 

 ed 6 times per minute, 75 lbs. of water raising it 14 feet high. 



12. "A latha (Pickotta) in a well from which it was 36 feet 

 to the water from the surface in half an hour drew 1357 lbs. 

 avoirdupois of water." Vol. 2 Cal. glean. Science, Page 29. 



13. As the gravity, or weight of either man or beast, is far more 

 effectual in mechanics, than the exertion of simple muscular effort, 

 I shall conclude these examples of practical data by two such ca- 

 ses from Brewster's Ferguson's Lectures. Vol. 2 P. 9. Ed. 1823. 

 I presume that pumps were used in both these instances. 



14. " According to Dr. Robison a feeble old man raised 7 cu- 

 bic feet of water,=437J pounds avoirdupois 11 J feet high in a mi.- 



