DOMAINS OF EXISTENCE. 19 



a Systematic, Orderly, and somewhat Complete Ar- 

 rangement of what is certainly knoivn or held to be 

 knotvn, and of wliat is important to be knoivn, in re- 

 spect to the particular subject or Department of 

 Being treated of. It is so, that the Animal Kingdom, 

 for example, furnishes, as a subject or Domain of 

 Being, the Science which is called Zoology (Gr. zoe, 

 LIFE, and logos, DISCOURSE). Zoology is therefore a 

 regular and systematized treatment or exposition of 

 the knowledge which has been acquired in respect to 

 animals, as a Domain of Observation and Thought. 

 It is the same in respect to other Sciences relating 

 to other Domains. 



23. It will be understood from the preceding para- 

 graph what is meant by a Domain of Existence, or 

 of Being, or of the Universe, or of Observation and 

 Thought ; (for all of these terms will occur, from 

 time to time, as substantially synonymous). The 

 Animals are such a Domain, the Science of which is 

 Zoology or Animalogy. Plants (Trees, etc.) are an- 

 other such Domain, the Science of which is Botany 

 or Vegetalogy. Form is such a Domain, the Science 

 of which is Morphology (Gr. morplie, EOKM). Number 

 is such a Domain, the Science of which is Abstract 

 Mathematics or Numerology, (Arithmetic, Algebra, 

 etc.). 



24. Domains of Being are larger or smaller in ex- 

 tent ; from the Universe itself, which is collectively 

 no other than such a Domain, down to the smallest 

 sphere or Realm which it may be practically proper 

 to recognize as worthy to be the subject of a distinct 



