Cambridge: PRINTED BY METCALFE AND PALMER, FOR MACMILLAN & Co., CAMBRIDGE. London: BELL & DALDY, 186, Fleet Street. Oxford: J. H. & JAS. PARKER. Edinburgh: EDMONDSTON & DOUGLAS. Glasgow: JAMES MACLEHOSE. Bublin: WILLIAM ROBERTSON. A KEY ΤΟ ARITHMETIC FOR BY BARNARD SMITH, M.A., FELLOW OF ST. PETER'S COLLEGE, CAMBridge. Cambridge: MACMILLAN AND CO. PREFACE. As the Rule, given for the Double Rule of Three in the Arithmetic, appears to be thought by some Schoolmasters difficult of application, the Author has been induced to adopt a new Rule, in accordance with the principles of which the Examples, under the head of Double Rule of Three, are worked out. The Author begs to return his best thanks to Mr. J. H. Smith, M.A., of Caius College, who has kindly taken the entire charge of the work during its progress through the Press. St. Peter's College, Cambridge, Jan. 19, 1856. |