Figure 1

Growth of conical structures for Experiment A (see Table 1 for concentrations). Left: Photographs of structure at various times since start of experiment, units of time are in minutes (the height of the structures shown are, from left to right, 1.3, 3.6, 6.5, 7.9, and 10.4 cm). Right: Height and width of structure as function of volumetric scale length. The vertical lines indicate when growth regimes switch.