PRINTED BOOKS 
13 
Colophon. ‘ Impressum Romae per lacobum Mazochium. Anno 
dni.// M.CCCCC.XVI. Die XXVII. Septembris.’ 
Description. 12.6 X 19.4 cm. 28 leaves. One of several books 
of the sixteenth century treating of proportion from the geometric 
standpoint while at the same time making use of arithmetic. The 
text is preceded by two Latin poems, and the book is dedicated 
to ‘Amplissimo in Xpo patri / &: Dno. D- Laurentio Puccio.// 
S.R : E. . . .’ 
Editions. There were no other editions. 
Page 123 
To the editions of Grammateus add ‘Erfurt, n. d., but post 
July, 1518.’ Also in line 2 of Editions read ‘s. 1. a. (Frankfort, 
1544).’ Also see p. 498 of Rara. 
Page 126 
In 1. 11, for 145 read 146. 
Page 130 
The colophon of the Algorismus in 1. 2 reads: ‘In officina 
Sigismundi Grim Medici ac // Marci Vuirsung, Augustae Vinde- 
//licorum. Die. 23. Jan. An. 1520.’ 
After 1. 8 insert: ‘ This was probably the first arithmetic 
printed in French,’ and add: ‘J. Furst, Compendiosa ars nume 
randi, Vienna, 1520.’ See Rara, p. 93, for another work by Furst. 
Page 130 
In Other works of 1520 include a small book printed in Paris 
[1520], entitled ‘L Art & sci//ence de arismetique // moult vtille 
et prffitable a toutes // ges & facille . . . imprime a Paris ’; see 
Fig. 5 on page 14. On fob 6, r, the anonymous author gives ‘les 
cinq rei//gles principalles qui sont Nume-//ration. Adition. 
Sustraction. mul//tiplication. et partition.//’ As a compendium 
of the operations needed in business it is exceptionally good.