g 2 6 Mr. Robertson’s new Demonstration , &c. 
a~*+nba-*- l +n . ^f 1 b 1 . 2±i . 2±» 6 3 . 
Z±i/-±±.!l±±b*a-n- 4+ &c. 
The four forms expressed in this article include the whole 
of the binomial theorem. 
