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PLATES IN VOL. I. 
I Britisli species of Lagena. 
I Anatomy of Eolis. 
Development of Medusae. 
Development of Medusae. — Cypridina MacAiulrei. 
Cypridina Adamsi. 
Anacharis Alsinastrum. 
Structure and Growth of Monocotyledons, 
j- New genera and species of Diatomaceae. 
I Ventriculidae of the Chalk. 
Spiridens Balfouriana. 
Grammitis blechnoides. 
i Gasteropodous Mollusca. 
