via 



List of Illustrations. 



riG. 



23. Pinna nobilis, and Pinna rugosa ... ... 



24. Varieties of Seaweed 



25. Ulva latissima (Green Sloke), and Chondrus crispus (Carrageen 



Moss)... 



26. Hawksbill Turtle 



27. Green or Edible Turtle ... 



28. Diving for Pearl Shells at Panama 



29. Mother-of-Pearl Shell, and Anodonta herculse ... 



30. Corallium nobilis, or red Coral, with a piece magnified, showing 



the Polypes 



31. Varieties of Coral 



PAGE 



307 

 316 



319 

 352 

 364 

 384 

 4" 



437 

 440 



