IX 



CONTENTS. 



INTRODUCTION. 



PAGE 



Nature of an Aquarium. — Experiments and adoption of Plan. — The 

 Vessel. — Shape and Material. — Fittings and Furnishing. — Aspect 

 and Admission of Light. — The Water. — Plants. — Animals. — 

 Transport of Specimens. — Care of the Aquarium 1 



CHAPTER II. 



SPONGES AND HYDKOID ZOOPHYTES. 



Nature and Habits of Sponges. — Propagation. — Appearance when living. 

 — Grantia botryoides. — Grantia ciliata. — Euplectella aspergillum. 

 — Zoophytes defined. — Classification. — Hydroid Zoophytes. — Hy- 

 dractinea echinata. — Coryne pusilla. — Coryne sessilis. — Euden- 

 drium rameum. — Tubularia indivisa. — Sertularia polygonalis. — 

 Sertularia argentea. — x\ntennularia antennina. — Plumularia pin- 

 nata. — Laomedea dichotoma. — Laomedea geniculata. — Laomedea 

 gelatinosa. — Campanularia volubilis. — Eucretia chelata. — Anguina 

 spatulata. — Cellularia ciliata 23 



CHAPTER III. 



Sea-Feathers, Sea-Pens, and Sea-Froth. — Pennatula phosphorea. — 

 Yirgularia mirabilis. — Pavonaria quadrangularis. — Gorgonia ver- 

 rucosa. — Kingfisher's Nest or Mermaid's Gloves. — Alcyonium 

 digitatum. — Alcyonidium hirsutum. — Infusoria and Foraminifera 60 



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