Yokohama: Kelly & Walsh, 1912. 1st. Original cloth. First Edition. 8vo. 34, [1 Chinese text] pp. Publisher's dark green cloth with gilt lettering. Lower corner of title page torn (with torn corner affixed to inside front board); else a fine copy. Item #18379
Soroban is the name of the Japanese abacus, used for 450 years, since its arrival in Japan from China in the middle of the 16th century. Over time, the structure of the abacus has been refined to its present form (see illustration), which has been in general use since 1938. In this work, the author's aim "... is to make Westerners familiar with the use of the little device, so simple in construction, so easy to operate, so trifling in cost, and yet rendering a good service, rather than to deal on its arithmetical principles." - Preface.