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Explanation of Plates, 
Plate XXIX. 
Fig. 1. Ovary of Clemmys marmorata, c. 2 x Vis- C = camera, 2 = ocular,. 
V 12 = objective, Bausch & Lomb. 
Fig. 2. Ovarian egg of Clemmys , 2 x 1 / 6 , c. 
Fig. 3. Ovarian egg of Clemmys, 2 x V 3 , c. 
Fig. 4. Ovarian egg of Clemmys, 2 x 1 / 6 , c. 
Fig. 5. Ovarian egg of Clemmys, 2 x 1 / 6 , c. 
Fig. 6. Ovarian egg of Clemmys, 2 x 1 / 6 , c. 
Fig. 7. Oogonium of Clemmys, 2 x 1 / 12 , c. 
Fig. 8. Oocyte of Clemmys, 2 x x / 6 , c. 
Fig. 9. Oocyte of Clemmys, 2 x 1 / 6 , c. 
Fig. 10. Cytocenter of large egg of Clemmys, 2 x V 12 , c. 
Plate XXX. 
Fig. 11. Ovarian egg of spider, 2 x V 12 , c -> B. & E- 
Fig. 12. Ovarian egg of spider, 2 x V 12 , c - 
Fig. 13. Oocyte of spider, 2 x 1 / 12 , c. 
Fig. 14. Yolk nucleus of spider’s egg. 
Fig. 15. Yolk nucleus of spider’s egg and part of g. v. 
Fig. 16. Yolk nucleus of spider’s egg and part of germinal vesicle, 2 x 1 / 12 , c. 
Fig. 17. Oocyte of spider, 2 x 1 / 12 , c. 
Fig. 18. Yolk nucleus of spider’s egg, g. v. = germinal vesicle, 2 x V 12 , c. 
Fig. 19. Yolk nucleus of spider’s egg, 2 x Vi 2 > c - 
Fig. 20. Yolk nucleus of spider’s egg, 2 x V 12 , c. 
Fig. 21. Oogonium of spider, 2 x 1 / 12 , c. 
Fig. 22. Yolk nucleus and germinal vesicle, g. v. of spider’s egg, 2 x Vis- 
Fig. 23. Yolk nucleus and germinal vesicle of spider, 2 x 1 / 12 . 
Fig. 24. Yolk nucleus of spider’s egg, 2 x 1 / 12 , c. 
• Plate XXXI. 
Fig. 25. Oogonia and oocytes of very young Limulus, when oocytes are forming 
for first time, 2 x Vi 2 > c - 
Fig. 26. Oocytes of Limulus, showing two forms of vitelline body or yolk nuclei, 
2 x V«, c. 
