﻿A 
  Further 
  Study 
  of 
  Chromosome 
  Dimensions. 
  165 
  

  

  EXPLANATION 
  OF 
  THE 
  PLATES. 
  

   Plate 
  2. 
  

  

  Fig. 
  1. 
  — 
  Polar 
  view 
  of 
  spermatogonial 
  metaphase 
  in 
  Stenobothrus 
  viridulus. 
  

   Fig. 
  2. 
  — 
  Polar 
  view 
  of 
  primary 
  spermatocyte 
  metaphase 
  in 
  ditto. 
  

  

  Fig. 
  3. 
  — 
  Lateral 
  view 
  of 
  primary 
  spermatocyte 
  metaphase 
  in 
  ditto, 
  showing 
  the 
  odd 
  

  

  or 
  heterotropic 
  chromosome 
  passing 
  undivided 
  to 
  one 
  pole. 
  

   Fig. 
  4. 
  — 
  Polar 
  view 
  of 
  secondary 
  spermatocyte 
  metaphase 
  in 
  ditto. 
  

   Fig. 
  5. 
  — 
  Polar 
  view 
  of 
  spermatogonial 
  metaphase 
  in 
  Smerinthv,s 
  popidi. 
  

   Fig. 
  6. 
  — 
  Lateral 
  views 
  of 
  spermatogonial 
  metaphase 
  in 
  ditto. 
  

   Fig. 
  7. 
  — 
  Lateral 
  view 
  of 
  spermatogonial 
  anaphase 
  in 
  ditto. 
  

   Figs. 
  8 
  and 
  9. 
  — 
  Polar 
  views 
  of 
  primary 
  spermatocyte 
  metaphase 
  in 
  ditto. 
  

   Fig. 
  10. 
  — 
  Lateral 
  view 
  of 
  primary 
  spermatocyte 
  metaphase 
  in 
  ditto. 
  

   Fig. 
  11. 
  — 
  Polar 
  view 
  of 
  secondary 
  spermatocyte 
  metaphase 
  in 
  ditto. 
  

   Fig. 
  12. 
  — 
  Polar 
  view 
  of 
  spermatogonial 
  metaphase 
  in 
  Vanessa 
  urticce. 
  

   Figs. 
  13 
  and 
  14. 
  — 
  Lateral 
  views 
  of 
  spermatogonial 
  metaphase 
  in 
  ditto. 
  

   Fig. 
  15.— 
  Lateral 
  view 
  of 
  primary 
  spermatocyte 
  metaphase 
  in 
  ditto. 
  

   Fig. 
  16. 
  — 
  Polar 
  view 
  of 
  secondary 
  spermatocyte 
  metaphase 
  in 
  ditto. 
  

   Fig. 
  17. 
  — 
  Lateral 
  view 
  of 
  secondary 
  spermatocyte 
  metaphase 
  in 
  ditto. 
  

   Fig. 
  18. 
  — 
  Polar 
  view 
  of 
  spermatogonial 
  metaphase 
  in 
  Helix 
  pomatia. 
  

  

  Plate 
  3. 
  

  

  Fig. 
  19. 
  — 
  Polar 
  view 
  of 
  primary 
  spermatocyte 
  metaphase 
  in 
  ditto. 
  

  

  Fig. 
  20. 
  — 
  Lateral 
  view 
  of 
  primary 
  spermatocyte 
  metaphase 
  in 
  ditto. 
  

  

  Fig. 
  21. 
  — 
  Polar 
  view 
  of 
  secondary 
  spermatocyte 
  metaphase 
  in 
  ditto. 
  

  

  Figs. 
  22 
  and 
  23. 
  — 
  Lateral 
  views 
  of 
  secondary 
  spermatocyte 
  metaphase 
  in 
  ditto. 
  

  

  Fig. 
  24. 
  — 
  Polar 
  view 
  of 
  secondary 
  spermatocyte 
  metaphase 
  in 
  Triton 
  cristatus. 
  

  

  Fig. 
  25. 
  — 
  Polar 
  view 
  of 
  spermatogonial 
  metaphase 
  in 
  Felis. 
  

  

  Fig. 
  26. 
  — 
  Lateral 
  view 
  of 
  spermatogonial 
  anaphase 
  in 
  ditto. 
  

  

  Fig. 
  27. 
  — 
  Polar 
  view 
  of 
  primary 
  spermatocyte 
  metaphase 
  in 
  ditto. 
  

  

  Figs. 
  28 
  and 
  29.— 
  Lateral 
  views 
  of 
  primary 
  spermatocyte 
  metaphase 
  in 
  ditto 
  ; 
  in 
  fig. 
  28 
  

  

  a 
  chromosome 
  is 
  seen 
  passing 
  apparently 
  undivided 
  to 
  one 
  pole. 
  

   Fig. 
  30. 
  — 
  Polar 
  view 
  of 
  primary 
  spermatocyte 
  metaphase 
  in 
  Gallus 
  domesticus. 
  

   Figs. 
  31 
  and 
  32. 
  — 
  Lateral 
  views 
  of 
  primary 
  spermatocyte 
  metaphase 
  in 
  ditto. 
  

   Figs. 
  33 
  and 
  34. 
  — 
  Polar 
  views 
  of 
  secondary 
  spermatocyte 
  metaphase 
  in 
  ditto. 
  

   Figs. 
  35 
  and 
  36. 
  — 
  Lateral 
  views 
  of 
  secondary 
  spermatocyte 
  metaphase 
  in 
  ditto. 
  

  

  