Introduction. 9 



the instant duty, as it is the best hope of our 

 race. 



Consciously to relate love to the great cosmic 

 forces which we see everywhere operating through- 

 out nature, to withdraw it from the realm of shame 

 and superstition it has so long inhabited, to depose 

 the sensual usurper which has been worshipped 

 in the name of love, and to set Love herself upon 

 the throne, fair, luminous, and pure to save and 

 bless, is the effort of multitudes of minds in the 

 present day. 



The following pages are not an attempt to add 

 to the wealth of discovery made by science in the 

 present remarkable era ; they are intended solely 

 to place within reach of the ordinary reader truths 

 as a rule so encased in technical phraseology that 

 many people, desirous of knowing the mysteries 

 of the living being, so far as these have been 

 revealed by modern research, cannot get at the 

 facts because of lack of time or inclination to 

 become familiar with the technical forms of 

 expression. 



The last fifty years have been unexampled in 

 the world's history in the discovery of facts con- 

 cerning the physical life. These facts concern 

 every one, and besides being of unparalleled inter- 

 est in themselves, they have a direct bearing upon 

 the guidance of individual life. 



Much in the life of the individual that seems 

 isolated, chaotic, and incomprehensible, becomes 



