EXERCISE No. 42 

 THE FORMATION OF AN EGG 



Object: To learn how the egg is formed. 



Material : A laying hen. 



Method: Dissect a hen in the class. Study the repro- 

 ductive parts as they are located in the hen. 



Conclusion: The ovary, ovules, and ovaduct are the 

 names of the reproductive organs. Parts of the ovaduct 

 are the funnel (-- hr.); albumen secretion parts, isthmus 

 (f hr.); shell gland (14 to 16 hr.). These numbers indicate 

 the time each part takes in the formation of an egg. Make a 

 drawing of the reproductive parts and properly label each 

 part of it. 



EXERCISE No. 43 

 THE PARTS OF AN EGG 



Object: To learn to name the parts of an egg and to tell 

 a fertile from an infertile egg. 



Material: Saucers, fertile and infertile eggs. 



80 



