164 Statics. 



261. Sometimes the axis is made to carry a wheel, the teeth 

 of which act upon a pinion furnished with an index and dial 

 plate, whereby a slight motion is rendered very conspicuous. 



The bent-lever balance is better adapted to dispatch than 

 any other instrument for weighing. But it is liable to irregular- 

 ity, and is not susceptible of the accuracy of the balance. 



