74 Traces of Unity in the Animal as a Whole. 



And thus, to bring these cursory remarks to a close, 

 I may say, not only that the traces of unity which 

 are everywhere met with in the appendicular organs 

 of animals are also everywhere met with in the central 

 parts, but also that the common archetypal form which 

 is thus brought to light has its final expression, not 

 in the vertebra or annellus, nor yet in a polypoid 

 form, but in the cell a conclusion which, in fact, is tan- 

 tamount to widening the grand generalisation of Harvey, 

 omne animal ex ovo, so as to make it applicable to every 

 part of the body as well as to the body as a whole. 



