TABLE OF CONTENTS. XIII 



Page. 



ClJUSTACEA PHYLLOPODA 259 



A. Useful. Couvcrted iuto fertilizers. Carapax used as a scoop or boat- 

 bailer 259 



Crustacea isopoda 260 



A. Useful ; by removing wrecks or snags 2C0 



B. Injurious ; by destroying submerged timber 200 



Crustacea stojiatopoda 200 



Crustacea dec apoda. — Lobsters, Sbrimp, Crawfisb, Crabs 200 



A. Useful; food-supxilying 200 



B. Commensal with other food supplies 201 



C. Injurious by burrowing iuto and weakening levees and dams 201 



D. Prepared foods 201 



CiRRiPEDiA (injurious) 262 



a. By dulling the edge of knives and spades employed in "cutting in" 



whale blubber 262 



1). By obstructing the progression of vessels uj)on which they affix them- 

 selves 262 



Annelida. — Worms and Leeches 202 



A. Useful 262 



1. In surgery and medicine 262 



2. For bait in fishing 202 



3. For food : 262 



B. Injurious 262 



1. By boring iuto and destroying oyster-shells 202 



Radiates. — Sea-Urchins, Starfish, Corals, Medusae, etc 262 



A. Useful 262 



1. Food-producing 262 



B. Injurious 263 



1. Destroying oysters, clams, «&c 263 



2. By their urticating powers annoying bathers and "fouling" nets 



and fishing lines with slime — various acalei)hs 263 



Protozans.— Sponges, etc 263 



Useful /. 263 



1. For conveyance of fiuids requiring an elastic and temporary men- 



struum, and as a detergent - ,. 263 



2. Useful as an clastic medium or absorbent 264 



Injurious , 264 



1. By destroying oysters .' 204 



EuizoPODS 204 



MISCELLANEOUS PRODUCTS OF SEA OR SHORE, NOT OF AN ANIMAL 



NATURE. 



a. Lichens 264 



h. Algaj 205 



1. Having economical applications - 265 



2. Ornamental algiB 265 



Inorganic materials 271 



