VI 



LIST OF PLATES. 



Plate 33. 



34- 



35- 



36. 



37- 



38. 



39- 



40. 



42. j 



43 



Development of paired fins of Elasmobranchii 



Structure and development of Lepidosteus 



44. V Germinal layers of the Chick . 



45- 



460 



47- 



48. 



49- 



52- 

 53- 



r Anatomy and development of Peripatus Capensis 



PAGE 

 7H 



738 



871 



