Click here to go to the NNJ homepage

Figures for Åke Ekwall's
Volutes and Violins

| Fig. 1 | Fig. 2 | Fig. 3 | Fig. 4 | Fig. 5a | Fig. 5b-c | Fig. 6 | Fig. 7 | Fig. 8 | Fig. 9 | Fig. 10 | Fig. 11 | Fig. 12 |

Fig. 3. (a, left) Vitruvian volute. 90° from and including arc 3; (b, right) Spiral figure from modern textbook in draughtsmanship; the involute of a square. | back to text |

 Figure 3a for Ake Ekwall

 Figure 3b for Ake Ekwall

| Top of Page |