FIGURE 2. Eleven spirals that are more complex than the simple logarithmic spiral, L1 in Refined methods for estimating spirals and spiral deviations

FIGURE 2. Eleven spirals that are more complex than the simple logarithmic spiral, L1 of Figure 1. Outlines are plotted on a logarithmic scale for radius against angle turned about the axis. Vertical lines show spirals with abrupt change, and shaded areas show regions of transitional change between log-piecewise spirals representing accretionary growth (see text for explanation and abbreviations).