WATSON'S TUTOR'S ASSISTANT; OR, COMPLETE SCHOOL ARITHMETIC: ON A PLAN PECULIARLY CALCULATED TO FACILITATE THE IMPROVEMENT OF THE PUPIL, AND REDUCE THE TO WHICH IS ADDED, AN IMPROVED RULE FOR THE BY WHICH THE OPERATION IS PERFORMED As easily, accurately, and expeditiously, as that of the Square Root; TOGETHER WITH THE USE OF THE CARPENTER'S SLIDING RULE; AND A FULL AND FACILE INTRODUCTION TO PRACTICAL MENSURATION; ALSO, AN APPENDIX, Exhibiting various methods of 'Ready Reckoning,' chiefly intended as BY W. WATSON, AUTHOR OF AN EASY AND COMPREHENSIVE INTRODUCTION TO ALGEBRA.' FOURTH EDITION, MUCH IMPROVED. LONDON: SIMPKIN, MARSHALL, AND COMPANY; AND MAY BE HAD OF ALL BOOKSELLERS. (Price only 2s, strongly bound in Sheep, or 2s. 6d. in Roan.) |