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C. F. U. MEEK. 
Fig. 42. — Lateral view of equatorial plate in earliest sperm atogonial 
an.'ipliase, showing divergence of danghter-chromosoines. Specimen d. 
Fig. 43. — Ditto, later. Specimen d. 
Fig. 44. — Lateral view of equatorial plate in earliest spermatogonial 
nietaphase, corresponding with fig. 39. Specimen b. 
Figs. 45, 46. — Lateral view of equatorial plate in late spermatogonial 
metaphase, corresponding with fig. 40. 
Figs. 47, 48. — Lateral view of equatorial j)late at conclusion of sperma- 
togonial metaphase, corresponding with fig. 41. Specimen b. 
Fig. 49. — Centrosomes belonging to equatorial plate depicted in fig 6. 
Estimated divergence in cell, 7*8 fx. 
Fig. 50. — Ditto in fig. 7. Ditto, 8‘1 fi. 
Fig. 51. — Ditto in fig. 8. Ditto, 8'3 /u. 
Fig. 52. — Ditto in fig. 9. Ditto, 8-5 fj-. 
Fig. 53. — Ditto in fig. 10. Ditto, 8*7 ju. 
Fig. 54. — Ditto in fig. 11. Ditto, 7'8 /x. 
Fig. 55. — Ditto in fig. 12. Ditto, 84 /i. 
Fig. 56. — Ditto in fig. 13. Ditto, 8*3 jx. 
Fig. 57. — Ditto in fig. 14. Ditto, 8'5 fx. 
Fig. 58. — Ditto in fig. 15. Ditto, 8'7 jx. 
Fig. 59. — Ditto in fig. 16. Ditto, 7’8 
Fig. 60. — Ditto in fig. 17. Ditto, 84 /x. 
Fig. 61. — Ditto in fig. 18. Ditto, 8'3 /u. 
Fig. 62. — Ditto in fig. 19. Ditto, 8*5 /*. 
Fig. 63. — Ditto in fig. 20. Ditto, S‘7 /x. 
Figs. 64-67. — Ditto in figs. 26-29 respectively. Ditto, 10‘4 fx. 
Fig. 68. — Ditto in fig. 30. Ditto, 10’2 /x. 
Fig. 69. — Ditto in fig. 31. Ditto, 10'4 
Fig. 70. — Ditto in fig. 32. Ditto, 10’7 jx. 
Fig. 71. — Ditto in fig. 33. Ditto, 10‘9 ix. 
Fig. 72. — Ditto in fig. 39. Ditto, 6’6 [x. 
Fig. 73. — Ditto in fig. 40. Ditto, 6’9 ju. 
Fig. 74. — Ditto in fig. 41. Ditto, 7'1 
Fig. 75. — Ditto in fig. 42. Ditto, 7’3 
Fig. 76. — Ditto in fig. 43. Ditto, 7'6 ju. 
Fig. 77. — Ditto in fig. 44. Ditto, 6*6 /x. 
Figs. 78, 79. — Ditto in figs. 45 and 46. Ditto, 6'9 jx. 
Figs. 80, 81. — Ditto in figs. 47 and 48. Ditto, 7*1 fx. 
