351 



DIRECTIONS FOR PLACING THE PLATES. 



Tab. 26. Embryos of Cltisiacea 



27. Development of Vessels in Plants . . . . 



28. Peachia hastata, and Thread-cells of Sagartia 



29. Diagram of the relations of Actiniada . . . 

 30. 



to face page 258 



266 



276 



276 



31. 

 32. 

 33. 

 34. 



Species of LeucosiacUe 314 



END OF THE TWENTY-FIRST VOLUME. 



PRINTED BY TAYLOR AND FRANCIS, RED LION COURT, FLEET STREET. 



