— 325 — 
Più oltre (pag. 327, lin. 1 — 5 ) sono indicati due esemplari d’un volume, in 4 ?, 
intitolato « ENCYCLOP^EDIA METROPOLITANA; || OR, || UNIVERSAL DICTIONARY OF KNOWLE- 
» dge, || On an Originai Pian: j| comprising thè twofold advantage of || a philo- 
» SOPHICAL AND AN ALPIIABETICAL ARRANGEMENT, |] WITH APPROPRIATE ENGRAVINGS. || 
» EDITED BY || THE REV. EDWARD SMEDLEY, M. A., (| LATE FELLOW OF SIDNEY COLLEGE, 
» CAMBRIDGE; || THE REV. HUGH JAMES ROSE, B. D., [| PRINCIPAL OF KINg’s COLLEGE, LON- 
a DON; || AND j| THE REV. HENRY JOHN ROSE, B. D., || LATE FELLOW OF ST. JOHn’s COLLEGE, 
a CAMBRIDGE. || VOLUME I. || [PURE SCIENCES, VoL. 1.] ||lONDONV:'.|| B. FELLOWES; F. AND J. 
» rivington; duncan and malcolm; suttaby and co.; e. hodgson; j. dowding; [| g. law- 
» ford; j. m. richardson; j. bohn; t. allman; j. bain; s. hodgson; f. c. westley; l. 
a a. lewis; || t. hodges, and h.washbourne; also j. h. PARKER, and t. laycock, 
» oxford;||and j. and j. j. deighton, Cambridge. ||l845. a Questo « volume i. » è com- 
posto di 912 pagine, delle quali le l a -o a , 25 a , 32 a , 57 a , 68 a , 69 a , 171%30S a , 372 a , 437 a , 592% 
700 a , 7io a , 740% 777 a , 804 a , 839 a , 9i2 a non sono numerate, e le 6 a — 24 a , 26 a — 31 % 33 a -56% 
58 a — 67 a , 70 a — 170 a , 172 a -307 a , 309 a -371% 373 a -436 a , 438 a -591 a , 593 a -699 a , 701 a -709 a , 711 a -739% 
74i a — 776 a , 778 a -803 a , 805 a -838 a , 840 a -9U a sono numerate coi numeri vi-xxiv, 2 - 7 , 9-32, 
34-43, 2-192, 194-240, 242-303, 305-368, 370-523, 525-631, 633-641, 643-671, 673-708, 710— 
735, 737—770, 772—843. Nelle linee 47—65 della seconda colonna della 497 a eli queste 
912 pagine, la cpial pagina 497 a è numerata col numero 429, e nelle linee 1— 16, 38—63 
della prima colonna della 498 a delle medesime 912 pagine, la qual pagina 498 a è 
a This method of multiplication, denominated schachero 
» at Venice, bericuocolo at Florence and Verona, and at 
a Verona and some other cities of Italy organetto, is exhi- 
» bited by Tartaglia, * and later Italian writers, without 
» the.squares, in thè appearance of which these singular 
a names originated. It thus became thè method which is 
» now ùniversally used, and which was adopted from thè 
a beginning of thè XVIth century by all writers on 
a Arithmetic,nearly to thè exclusion of every other method. 
» * Numeri e Misure , pars I ma Venice, 1556. This is a work in 
» three-large volumes ; thè first of wich contains thè most elaborate 
» System of praticai and mercantile Arithmetic that was known in that 
» age, and wich we shall bave vcry frequent occasion to refer to. The 
d other volumes are divided into five parts , thè subjects of wich are 
» geometry , mensuration , speculative arithmetic , and algebra . Its 
» author, Nicolas Tartaglia, justly celebrated for his important discovery 
* of thè method of Solutions of cubie equations , derived his natile, 
» according to thè testimony of Tiraboschi, from thè following incident. 
» He was born at Brescia in 1500, and at thè sack of that city, by thè 
» French in 1512, was left for dead with three sword-cuts on his head 
» and two on his face and lips; by thè care of his mother, however, he 
» recovered, but in consequence of thè wound on his lips he lisped or 
7) stammered so mudi, that he was nicknamed by thè boys Tartaglia, from 
» thè Italian word by wich this imperfections is designated. In later 
» life he retained a name wich was riot without interest as cqnnected 
» with thè story of his misfortunes. In 1534 he settled at Venice, and 
» became Professor, of Arithmetic, a situatimi which he filled with 
» extraordinary reputation for twenty-five years. 
d Some idea may he formed of thè opinion entertained of Tartaglia 
» and of his work, from thè following title of an ahridged translation 
» of it: L' Arithmetique de Nicolas Tartaglia , Brescian, grand mathe- 
» maticien^et prince des praticiens . Recueillie et traduite del' Italien 
» en Francois , par Guillaume Gosselin de Caen. Dedièe a tre s illustre 
» et vertueuse princesse Marguerite de France , rey ne de Navarre, 
» 1578. » 
numerata col numero 430, si legge : 
« (110) The Italians, who cultivated Arithmetic with so 
» much zeal and success, from a very early period adopted 
» from their orientai masters many of their processes for thè 
)) multiplication and division of numbers ; adding, how- 
» ever, many of their own, and particulary those which 
a are practised at this day. In thè Summa de Arith- 
» metica of Lucas de Burgo we fìnd eight different 
a methods of multiplication , some of which are desig- 
» nated by names of a very quaint and fanciful nature- 
a We shall mention them in their order : 
a I. Multiplicatio : bericuocoli e schacherii. The se- 
, a cond of these names is derived from thè resemblance 
i a of thè written process to thè squares of a chess-board; 
I a thè first from its resemblance to thè chequers on a 
a species of sweetmeat or cake made chiefly from thè 
, a paste of bacochi or apricots, * which were commonly 
a used at festivals. The process is as follows ; 
9 8 7 6 
6 7 8 9 
1 8 | S | 
8 | 8 | 4 | 
1 P 
9 | 0 
1 0 | 8 | 
I 6 1 
1 9 
b b | 
2 [ 
b 
1 9 
1 2 
1 m 6 1 
6 
7 
0 
4 8 
1 6 4 
b * Bericuocolo-. spezie di confortino , si tacevano prima que' 
ji confortini de pasta de bacochi , corri' e da credere . 
42 
