EXERCISES 337 



food? Any reptiles? Which class of mammals does man use as food, 

 the carnivorous or the herbivorous animals? 



2. Find out about how many eggs your family uses weekly and 

 annually. Find out how many your city uses, and where the supply 

 comes from. 



3. To what uses did primitive man put the skins and furs of ani- 

 mals? Name several of the ways in which we use them to-day. 



4. How has the camel been useful to man? The reindeer? The 

 dog? How is the cat helpful to man? How is it injurious? 



5. The Latin word for money, pecunia, from which we get our word 

 " pecuniary," comes from a word meaning "cattle." How did this 

 come about? 



6. How have the tendons of animals (cf. 355) been used by man? 

 The bones? The horns? 



7. What is ivory? For what is it used? What is the modern 

 substitute for it? 



8. What is sperm oil, and for what is it used? 



9. What is the source of the bristles of brushes? Did the Indian 

 have any use for the porcupine's quills? What other uses has man 

 for the hair of animals? 



10. Name some economic products obtained from birds, aside from 

 their eggs and flesh. 



11. What is the source of glue? Of gelatine? 



12. Name several climbing birds. Perching birds. Swimming 

 birds. Wading birds. 



13. Ask a farmer or a liveryman, if you do not know, why horses 

 are fed oats in addition to hay or grass. 



14. Name some economic uses of fishes aside from the use of their 

 flesh as food. 



