Hoffmann, Professor, 1839-1919 · London : Frederick Warne · leaf 307
Fig. 413. replace four matches so as to form three squares only, of thesame size as at first. No. XIII.- Fifteen matches being laid on the table so as to form five £ .B, Fig. 414. equal squares, as in Fig. 414, required, to remove threematches so as to leave three such squares only. No. XIV.With…
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![An illustration from Divina proportione : opera a tutti glingegni perspicaci e curiosi necessaria oue ciascun studioso di philosophia: prospettiua pictura sculptura: architectura: musica: e altre mathematice: suavissima: sotile: e admirabile doctrina consequira: e delecterassi: co[n] varie questione de secretissima scientia (1509)](https://img.insideoutlibrary.com/img/200/ia-divinaproportion00paci-89-144.webp)
