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CONTENTS.
xiii.
Suicide of one—Holothuriæ—Chirodota—Its Structure—Its Manners—Ovarian Threads—Effusion of Colour—The Leaf-Worms—Their Elegance—Evolution of the Stomach—A new Species—Structure of the Spears—Use of these Organs not entirely known—Respiration—Reflections. |
216–254 |
Practical Instructions—The Name—Vivarium—Aqua-vivarium—Aquarium—The Tank—Form and Size—Aspect—Cost—The Preparation—Artificial Rocks, &c.—The Bottom—Water—The Stock—Plants—Animals—Procuring Specimens—Transmission—General Directions—Purification—Occasional Death—Instruments—Artificial Aëration—Evaporation—Cleansing the Sides—Conclusion. |
255–278 |
