112 INTRODUCTION TO ZOOLOGY. 



13. What is peculiar about the ear itself? 



14. Name the parts of the leg. 



15. Between what bones is the knee? 



16. Where is the heel? 



17. Is the tarsus feathered? 



18. With what is the tarsus covered ? 



19. How many bones, exclusive of the claw, in the 



hind toe? Inner toe? Middle toe? Outer toe? 



20. Name the parts of the wing. 



21. What feathers grow on the hand? On the arm? 



On the forearm ? 



22. What and where is the spurious primary? 



23. How many bones in the forearm? 



24. How many bones in the hand? 



25. How many primaries has a pigeon? 



26. How many secondaries? 



27. What are the coverts? 



28. How many tail feathers? 



29. Where are the tail coverts? 



30. Where are the scapulars? 



31. How are the feathers arranged? 



32. What are pin feathers? 



33. What homologues of feathers are also found? 



34. Where is the oil gland? What is its use? 



35. What is the windpipe? Of what is it composed? 



36. Where is the crop? What is its use? 



37. What veins run down the neck? 



38. What arteries run up the neck? 



39. What nerve runs up the neck? 



40. What are the air sacs? How many did you 

 / count? 



41. What and where is the sternum? 



42. What bones are joined to the front end of the 



sternum ? 



43. To what is the wish bone homologous? 



44. What and where is the scapula? 



45. What muscle moves the wing up? 



