56 



THE WAY LIFE BEGINS 



is filled with fluid. In this way, the embryo is protected 

 from all jars and pressures. At the end of the gestation period 

 the young pass out through the vagina and, as we say, are born. 



ymm. 



FIGURE 4 



All mammal and human egg cells are essentially alike. The egg is surrounded by a trans- 

 parent membrane; a small amount of food material is stored within the cell for use during 

 the early stages of the growth of the embryo. A small round body, the nucleus, carries the 

 hereditary material. Inside the nucleus is seen another body, the nucleolus. 

 Sperm cells surround the egg and endeavor to pass through the membrane and outer wall cf 

 the egg. Highly magnified. 



Should the eggs not be fertilized at once, they remain for 

 a time in the tube and uterus; but eventually find their way 

 to the outside, or are absorbed. 



Lessons from the Rabbit 



One ought to carry away from a study of the rabbit two or 

 three very important truths. 





