XII ANIMAL RESOURCES OF THE UNITED STATES. 



Page. 



II. rilUTKCTION M41 



2. PresiTvation of gaiuo and fish J 11 



4. (Accessory.) Enemies of useful animals 'J44 



III. Propagation' :J44 



5.. Propagation of mammals 244 



G. Propa;:ation of birds 244 



7. Projjayation of rci)tilt's 245 



H. Projia "Ration of ani]»liibians 24.5 



y. I^iopayation of fishes 245 



10. Propagation of insects 248 



11. Propagation of leeches 248 



12. Propagation of mollusks 248 



1:J. Propagation of corals 248 



14. Propagation of sponges 248 



CATALOGUE OF ILLUi^TRATIONS OF THE ECONOMICAL INVERTEBRATES 

 OF THE AMERICAN COASTS. liY W. H. DALL. 



MoLLUSCA CKPiiALoroDA.— Squids and Cuttlcs 251 



MoLLUscA GASTEROPODA. — Sca-Suails, &C 2.')! 



A. Useful 2:.l 



1. Used for food or bait 251 



2. Useful by producing pearl-shell, tfcc 251 



3. Afibrding cameo and porcelain stock 252 



4. Used in Indian trade 252 



5. Afi'ording dyest nils 252 



6. Art'ordiug bii'd-lime 252 



B. Injurious 253 



1. By destroying food-i)roducing mollusks or shell-fish, such as clams, 



mussels, oysters, and razor-fish 2.53 



2. Injurious by destroying vegetable substances and garden plants 2.53 



MOLLUSCA ACKPIIALA.— Bivalve Shellfish 353 



A. Producing food or used as bait 253 



1. Series ilhustrating distribution and geographical varieties 253 



OsTREA VIRGINICA, Gmeliu.— East American Oysters 253 



OsTP.EA LURIDA, Cpr. — "West Coast Oysters 25;{ 



1. Extra limital 254 



2. Series illustrating culture and individual variations 255 



OsTREA VIRGINICA, ( Jmelin.— East American Oysters 255 



fl. Growth. 1-20 years old 255 



h. Peculiarities of form and growth 255 



c. Enemies and parasites '21^ 



* * * Other bUulven. 



A. Affording or available for food or bait 25G 



B. Useful or ornamental bivalves other than those aflording food 256 



a. Pearl-]irodii(ing 2.50 



1. River mussels 256 



2. Marine pearl-shells 2.'»8 



/'. Otherwise useful 258 



C. Injurious lii valves 258 



fl. Destroying submerged timber 258 



1. 8])eeimeuH of wood showing ravages 258 



D. Prep. ...I r.....u 259 



