TABLE OF CONTENTS. XIII 



Page. 

 III. Materials employed in the arts and manufactures— Coutiuued. 



7H 



11. Hoofs and claws 



12. Baleen "^^ 



13. Tortoise-shell... ^^ 



14. Scales "^ 



. Pearl ''^ 



15 



16. Shells 



17. Coral . 



80 

 81 



18. Infusorial earth °'^ 



19. Other materials derived from invertebrates 82 



** Flexible materials. 



20. Leather ^^ 



21. Hair and -wool, (see also 8) - ®° 



22. Quills ^^ 



23. Feathers ^~ 



24. Gelatine and isinglass ' "° 



25. Flexible materials from insects and mollusks 89 



26. Sponges 89 



***FluieJs and soft materials. 



27. Oils and fats - ^^ 



28. Perfumes 92 



29. Coloring materials ■^'^ 



30. Chemical products and agents- employed in the arts and medicine 93 



31. Fertilizers 96 



32. Litues, (see under 30) 96 



33. Other materials 96 



Section E.— PROTECTION AND CULTUEE OF USEFUL ANIMALS. 



I. Investigation 97 



1. The methods of the United States Fish Commission 97 



II. Protection 97 



2. Preservation of game and fish 97 



X Care of animals in captivity : 98 



4. (Accessory.) Enemies of useful animals 98 



III. Propagation •-. - 98 



5. Propagation of mammals — ^8 



6. Propagation of birds 99* 



7. Propagation of reptiles - - 99- 



8. Propagation of amphibians ...;. 99 



9. Propagation of fishes J J 



10. Propagation of insects - - ^^^ 



11. Propagation of leeches ---- ^^^ 



12. Propagation of mollusks • • ^^^ 



13. Propagation of corals ---- ^^^ 



14. Propagation of sponges - - ^^^ 



ALPHABETICAL INDEX •---• l^" 



