JF Ptak Science Books  Quick Post

Giorlamo Cataneo provided us with this gorgeous circular calendar calculator in his Rote Perpetue…, published by Francesco Marchetti in Brescia in 1562. This is the third-from-last of 58 such tables that illustrate this elusive work.  Cataneo (1540-1586) was an Italian engineer and architect who published at least eight works, many of them quite beautiful, including the fortifications book Dell’arte del misurare libri due, nel primo de’quali s’insegna à misurare, & partir’ i campi, which is a particularly lovely thing.

Illustration from:  

Rote perpetue, per le quali si puo con qual numero di due dadi si voglia : overo con due dadi secondo l’horologio d’Italia : ritrouar quando si fà la Luna : le Feste mobili : la Patta : l’Aureo numero : l’Indittione, la Lettera domenicale col bisesto et in che giorno entra il principio d’ogni mese  di. m. Girolamo Cataneo.

Another source for the full book, Internet Archive: https://archive.org/details/bub_gb_1ky_MGsNW3AC