PLATES IN VOL. I. 



jr" > British species of Lagena. 



lY \ Anatomy of Eolis. 



V, Developpient of Medusas. 

 VI. Development of Medusae. — Cypridina MacAndrei. 

 Vn. Cypridina Adamsi. 

 VIII. Anacharis Alsinastrum. 



IX. 1 



^' >■ Structure and Growth of Monocotyledons. 



XII* \ ^^^ genera and species of Diatomaceae. 

 XIII.-j 



Xy' |- Ventriculidse of the Chalk. 

 XVLj 

 XVII. Spiridens Balfouriana. 

 XVIII. Grammitis blechnoides. 

 XIX. 1 

 XX I Gfasteropodous Mollusca. 



