4 SEX-LORE 



we are like them in possessing similar organs of 

 sight, hearing, touch, taste, and smell, as well as 

 organs of digestion and of reproduction. 



For ages it was believed that Man and animals 

 were created separately and that they were entirely 

 different. It was only in the nineteenth century 

 that this idea slowly began to give way to the new 

 discoveries that were made by men of science. Deep 

 below the surface of the earth, in the rocks, were 

 found the remains of animals whose types are now 

 extinct and no longer exist. It was proved that the 

 fossils found were those of the ancestors of similar 

 species now living. In the same way, it has been 

 shown that man's ancestry also can be traced back 

 to an extinct type of being, which was intermediate 

 between man and ape, the so-called ape-man. Indeed, 

 Charles Darwin has established it as a scientific fact 

 that all animals are descended from earlier, simpler 

 forms, and that man also traces his origin back 

 through the ape-man in the last instance to the 

 animals. This principle, the descent of all higher 

 beings from the lower, is called the theory of 

 Evolution. 



If we wish, then, to understand ourselves, we shall 

 derive much help from the study of animals. The 

 life of animals is more natural and more simple than 

 that of mankind. They have not our highly com- 

 plicated social customs, which overlay and often 

 completely hide our natural impulses. It is because 

 of this simplicity that animals display the facts of 

 life in a more primitive and unaffected manner. 

 The same applies to courtship, the subject of this 



