48 THE BRITISH WOODLICE.
SURFACE VIEWS. OPTICAL SECTIONS.
the development of A Woodlouse (Porcellio scaber), AFTER ROULE.
Figs. 24, 26, 28, 30, are Surface Views, and figs. 25, 27, 29, 31, which
indicate slightly later stages respectively than the others, are of eggs seen in Optical
Section.