118 FUNDAMENTAL THEORY OF COUPLES. 



This is evident, independently, if we resolve each couple 

 into two forces acting at the ends of an arm common 

 to all the couples, when the forces of the resultant couple 

 will be the algebraic sums of the forces of the component 

 couples. 



THE END. 



TV. MKTCALFE AND SON. PRINTERS. GHEES STREET, CAMBRIDGE. 



