| Description | Slide shows four black and white diagrams demonstrating 'Chromosones in the maturation of the eggs of Moths.'
Diagrams are labelled 1-4 respectively.
Title below images reads: 'Fig. 19. Chromosones in the maturation of the eggs of Moths. (Reproduced , by permission of the Editor, from Quart. Journ. Micr. Science, LIX (1914), p.506) (1,2) Phragmatobia fuliginosa, after SEILER. (1) Outer group of first polar division, 27 ordinary and one large chromosome (total 28). (2) Inner group of same egg, with 27 ordinary and one large chromosome divided (Total 29). (3,4,) Abraxas grossulariata, strain which has 55 chromosones in the female before reduction. (3) Outer group of first polar division, 28 chromosones. (4) Inner group of same egg, 27 chromosones. In other eggs the outer group has 27, and the inner group, from which the egg-nucelus is produced, 28.'
Phragmatobia fuliginosa is commonly called the Ruby Tiger moth.
Abraxas grossulariata is commonly called the Magpie moth. |