654 Organic Physics. [August, 



These reproductive glands, as a final process, excrete the ger-' 

 minal corpuscles from the body to pursue independently their life 

 development. They are either completely thrown out, or else 

 retained for a time in an organ which communicates with the ex- 

 terior, and is essentially outside the individual organism. The 

 germ is no more a part of the body in the ovary than is food in 

 the mouth. 



In the process we have thus indicated, the chemical synthesis 

 of the germ is completed. From this point a reverse process of 

 analysis sets in ; the cell grows, divides, its molecules separate and 

 produce specialized cells, these aggregate into special tissues, and 

 finally the composite germ is analyzed into a specialized body, 

 where a particular tissue represents every specific molecular energy 

 in the germ. 



But the germs thus produced are derivatives of the whole body, 

 and therefore have male and female polarities arising from its two 

 sides. In some cases they display a hermaphroditic development 

 without further polarization. But in all the higher animals a 

 more complete polarization is necessary, and is gained by the 

 union of germs from separate sexual individuals. This process 

 is preceded by a very significant one in the germs themselves ; 

 they continue their growth in the reproductive organs. In the 

 female cell this is done by the process of budding, the result be- 

 ing the protrusion of one or more buds known as the polar 

 bodies. In the formation of these buds one pole of the nucleus 

 is always concerned, and it is evidently a true process of growth, 

 in which the cell suffers a sexual differentiation, its male energy 

 being budded off in these polar bodies. It is the first step in a 

 hermaphroditic growth process which the germinal cell is not 

 capable of carrying further, perhaps from the fact that all the 

 provided nutriment is retained by the female half of the cell. 



A somewhat similar process takes place in the male germ, it 

 being here rather a division than a budding. Thus by a natural 

 continuance of the principle of cell growth, the two sexual germs 

 become specially polarized, and suited to unite into a vigorously 

 polar bisexual germ. This final step of synthesis achieved, analy- 

 sis immediately proceeds as before. Cell growth, division and 

 specialization set in, and a new organic being arises to replace the 

 two in which its germinal organization was elaborated. 



In the process here indicated, we may perceive the fundamental 



