T O

William Jones, Esq .

Fellow of the Royal Society.

8 I R,

F ROM the Time you was pleased tosignify that notwithstanding themany Books of Algebra already extant ,something on that Head , well executed ,might , still, be of Use , I had a strongInclination, however unequal to theTalk, to attempt a Work of this Na-ture; and therefore, as the followingSheets owe their Birth to You, I think,were it for that Reason alone, I mightclaim a Sort of Right to address themto You ; than whom no Man living isa better Judge both as to what has

A 2 been