{"product_id":"improved-abacus-an-explanatory-treatise-on-the-theory-and-practice-of-arithmetic-and-mensuration-classic-reprint","title":"Improved Abacus: An Explanatory Treatise on the Theory and Practice of Arithmetic and Mensuration (Classic Reprint)","description":"\u003cp\u003eExcerpt From Improved Abacus: An Explanatory Treatise On The Theory And Practice Of Arithmetic And Mensurationno Secondary Principle Has Been Used In The Elucidation Or Illustration Of One That Is Primary; Nor Has Any Princi Ple Been Anticipated; But Each, Used In Its Natural Sequence, Has Been Made The Basis Of A Yet Higher Principle, In Such Manner, As To Cultivate The Reasoning Powers Of The Learner, With Out Embarrassing. Them.About The Publisherforgotten Books Publishes Hundreds Of Thousands Of Rare And Classic Books. Find More At Www.Forgottenbooks.Comthis Book Is A Reproduction Of An Important Historical Work. Forgotten Books Uses StateOfTheArt Technology To Digitally Reconstruct The Work, Preserving The Original Format Whilst Repairing Imperfections Present In The Aged Copy. In Rare Cases, An Imperfection In The Original, Such As A Blemish Or Missing Page, May Be Replicated In Our Edition. We Do, However, Repair The Vast Majority Of Imperfections Successfully; Any Imperfections That Remain Are Intentionally Left To Preserve The State Of Such Historical Works.\u003c\/p\u003e","brand":"Forgotten Books","offers":[{"title":"Default Title","offer_id":45917978394822,"sku":"DADAX1330225384","price":27.37,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0695\/9389\/1014\/files\/61y8HCahAsL.jpg?v=1780649699","url":"https:\/\/ergodemedia.com\/products\/improved-abacus-an-explanatory-treatise-on-the-theory-and-practice-of-arithmetic-and-mensuration-classic-reprint","provider":"Ergodemedia","version":"1.0","type":"link"}