« ΠροηγούμενηΣυνέχεια »
a R + T H M et I call
A co M P L E T E sys T E M
PR Act 1 C A L A RIT H M ET I c.
Late Masters of a Boarding-School at Goiberton, and now
*** * * R I G H T H O N O U R A B L E The Lord BRowNLow BERTIE,
One of the Representatives in Parliament for the County of LINcolN, &c. &c.
H E utility of the science treated upon in the following sheets, must be well known to your Lordship, who has so often been a witness of the advantage and uncommon weight, argu, ments drawn from arithmetical computations carry with them in that house, i Qwhereof you are so worthy a member; o that if this performance be found equal to the usefulness of the subjećt, it may justly be entitled to your Lordship's patronage. Your assiduity in parliament for promoting the drainage of, and making roads through a lately inundated, though rich country, is and will be of such great benefit, that succeeding ages, as well as the present, must reap the advantage of A 2 these
these salutary works, and posterity bless the time when a B E R T 1 E graced the British senate. That your Lordship may still succeed in promoting the good of your native country, and long live the great ornament thereof, is the hearty wish of, - - A
P R E F A C E. HE book here presented to the world is a regular system of common arithmetic,
N U M E R AT 1 on, and the next four general rules, are enriched with many compendious methods and examples; and the rules of Pračtice very copious and extensive. The doćtrine of Vulgar Fraćtions is here rendered more easy, concise, and useful, by the means of an easy axiom ; Decimals are pursued through all the late improvements, in the management both of plain and circulating numbers; and the Extraction of the Roots, particularly the Cube, is done in a more easy manner than in any book of arithmetic, which has ever yet come under our inspection. B O O K II. * In which Proportion is treated on in a scientific manner, and adapted as well to the use of the young mathematician, as together with the rules