134-136. Prophase of second maturation mitosis, showing dyads and element x.

Plate V.

Blattella germanica.

Figs. 137-141. Dyads contracting for second maturation mitosis.

142. Equatorial plate of second maturation spindle, containing 11 chromosomes.

143-144. Same, with 11 chromosomes and the element x.

145-147. Sections of second maturation spindles; element x dividing in 146 and 147.

148. Telophase of second mitosis.