233. Prophase of first maturation mitosis, some of the chromosomes split longitudinally.
234. Later stage, chromosomes condensing and element x dividing.
235-237. First maturation mitosis.
238. Division of element x between the two maturation divisions.
239. Second maturation mitosis.
240. Anaphase of same, showing the element x more deeply stained than the chromosomes.
241. Young spermatids; element x still conspicuous.
