767581.fig.004a
(a)
767581.fig.004b
(b)
767581.fig.004c
(c)
767581.fig.004d
(d)
Figure 4: Polarized optical micrographs of 4-(decyloxy)benzoic acid taken during heating from the solid phase at (a) 25 °C, (b) 91.4 °C, (c) 106.8 °C, and (d) 135.2 °C.