FABRE (Jean-Henri). Reasoned solutions of... - Lot 8 - Métayer-Mermoz Maison de Ventes aux Enchères Paris

FABRE (Jean-Henri). Reasoned solutions of arithmetic problems and calculation exercises. Autograph manuscript. Avignon, 7 December 1869-30 January 1870, 162 pp. in-folio (28.7 x 19.8 cm), in sheets, central fold. COLLECTION OF SOLUTIONS OF ARITHMETIC EXERCISES AND PROBLEMS. It consists of 25 chapters (out of 32), paginated 1 to 50, 67 to 140, 148 to 179, 184 to 197, plus pp. 1bis and 7bis, for a total of 162 pp., containing the solution of exercises and problems posed in the New Arithmetic. Chapters I, II, III. Numeration. Addition of whole numbers (pp. [1] to 6; 1 bis). - IV. Subtraction (pp. 7-11; 7 bis). - V. Multiplication (pp. 12-18). - VI and VII. Division (pp. 19-26). - VII (continued). Problems with the four rules (pp. 27-34). - VIII. Numbering of decimal numbers (pp. 35-36). - IX. Addition and subtraction of decimal numbers (pp. 37-39). - X. Multiplication of decimal numbers (pp. 40 and 41). - XI. Division of decimal numbers (pp. 42-45). - XII. The metre (pp. 46-50). - XVIII. The franc (pp. 67-70). - XIX. Time and angular measurement (pp. 71-75). - XIX (continued). Problems of recapitulation on the metric system (pp. 76-84). - XX. Divisibility characters (pp. 85-93; ink spots pp. 88-89). - XXI. Problems of proportionality (pp. 94-111). - XXII. Problems of interest (pp. 112-120). - XXIII. Discount, rebate, commission, brokerage, insurance premium, etc. (pp. 94-102). (pp. 121-130). - XXIV. Problems with the Partnership Rule (pp. 131-140). - XXVI and XXVII. Ordinary fractions (pp. 148-153). - XXVIII. Addition and subtraction of fractions (pp. 154-160). - XXIX. Multiplication and division of fractions (pp. 161-172). - XXX. Greater common divisor (pp. 173-179). - XXXII. Cubic root (pp. 184-187; small lack of paper on p. 187 with loss of a few words). Between 1869 and 1872, Fabre composed 4 works of arithmetic for teaching purposes, the most important of which was the Nouvelle arithmétique, published by