TABLE OF CONTENTS. 



MORPHOLOGY. 



I. — The Skeleton generally, with the Modeh of Union op its Component Joints. 

 Syzygies, . 

 Articulations, 



II. — The Stem and its Appendages, 



A. Pentacrinidce, . 



Tenaination of the Stem below, 



B. BourgueticrinidaB, 



Morphology of the Stem, 

 C Hyocrinirise, 



111. — The Calyx, 



A. The Basals, 



B. The Eadials, . 



C. The Interradials, 



Anal Series, 



IV. — The Eays, 



A. The Ray-Divisions and Arras, 



B. The Pinnules, . 



Pinnules of Palseocrinoids, 



v. — The Visceral Mass, 



A. The Oral Plates, 



B. The Perisomatic Skeleton, 

 C The Visceral Skeleton, 



VI. — The Minute Anatomy of the Disk and Arms, 



A. The Geography of the Disk, 



B. The Digestive Tube, . 



C. The Water- Vascular System, 



D. The Blood- Vascular System, 



Labial Plexus, 

 Plexiform Gland, 

 Chambered Organ, 



E. The Genital Glands, 



F. The Nervous System, 



Ambulacral Nerve, 

 Axial Cords, 

 Parambulacral Network, 

 Circular Commissure, 



G. The Sacculi, and the Colouring Matters, 



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