CONTENTS.

PAGE
[INTRODUCTION.]
History[1]
Epitome of Anatomy[2]
[PHYSIOLOGICAL.]
Charybdea.
Light and Darkness[5]
Concretions[8]
Sensory Clubs[9]
Velarium and Frenula[11]
Pedalia, Interradial Ganglia, Tentacles[12]
Stomach, Suspensoria, Proboscis, Subumbrella[13]
Margin, Radial Ganglia, Nerve[15]
Stimulation[17]
Activity of Charybdea[17]
Temperature[17]
Food and Feeding[18]
Occurrence of Charybdea[18]
Aurelia and Polyclonia (Cassiopœa)[19]
Summary[22]
[DR. CONANT’S NOTES.]
Charybdea.
Light and Darkness[24]
Sensory Clubs[26]
Nerve[29]
Side, Subumbrella[30]
Pedalia, Velarium, Ganglia[31]
Tentacles[32]
Proboscis, Stomach, Phacelli[33]
Temperature[33]
Food and Feeding[33]
Occurrence of Charybdea[33]
Activity of Charybdea[34]
Aurelia and Polyclonia[35]
Cassiopœa[39]
Aurelia[39]
[HISTOLOGICAL.]
Method[40]
Anatomy[41]
Distal Complex Eye—
General[41]
Cornea[42]
The Lens[42]
The Capsule[44]
The Retina[45]
(a) The Prism Cells[46]
(b) The Pyramid Cells[48]
(c) The Long Pigment Cells[50]
(d) Subretinal Nerve Tissue[53]
(e) Discussion of Literature[53]
(f) Function of the Retinal Cells, Patten’s Theory, and further Literature[56]
The Proximal Complex Eye[60]
The Simple Eyes[61]
Lithocyst and Concretion[63]
The Epithelium of the Clubs[64]
Network and Multipolar Ganglion Cells[67]
The Nerve Tissue[67]
The Supporting Lamella[68]
Epithelium of Ampulla and Floating Cells[68]
The Endothelium of the Peduncle[73]
The Tentacles and Pedalia—
The Ectoderm[74]
(a) Thread Cells[74]
(b) Muscle Fibers[74]
(c) Ganglion Cell[75]
The Endoderm[75]
Summary[77]
LITERATURE[78]
REFERENCE LETTERS[80]
DESCRIPTION OF FIGURES[81]