SYSTEMATIC ANALYSIS OF APPARATUS. 129 



485. IT is NOT SUPPOSED OR PRETENDED that the 

 precise or the entire use or mode of action has been 

 assigned to each organ, but a correct bird's-eye view has 

 been taken of the whole field, and the ground has been 

 laid out in such a way as to be readily and comprehen- 

 sively studied in detail at the appropriate time. 



486. THE GENERAL USES OF ALL THE ORGANS must 

 be such as has been assigned to them, and these will be 

 convenient guides to the student, in present or future 

 studies, toward developing truth and detecting error. 

 The classing of the organs under the appropriate heads 

 of Apparatus enables the student at once to perceive 

 their general relations to each other and to the whole 

 Body, and will enable him easily to remember them, 

 hanging, as it were, in so many clusters, and these also 

 grouped about their centres. 



487. THE PARTICULAR MODES OF ACTION of the va-. 

 rious organs can only be understood by studying the na- 

 ture or properties of the various substances of which 

 they are composed, which will be the topic of the next 

 chapter. 



It is very desirable to have the student become quite familiar with the general 

 appearance of the organs, their positions and their general uses, before he attempts 

 to master their particular structure and uses. He should endeavor, with his own 

 mind's eye, to see them in the Body itself; should, upon the surface of his own. 

 Body, mark out the regions they occupy, and compare them with the representa- 

 tions in the cuts. At this stage of his progress it will be well, therefore, for him 

 to make a very thorough review of the cuts preceding; let him also study those in 

 the atlas appended to the work, which have been thus printed in order that they 

 may be plainer, and that they may be more easily studied in a consecutive manner. 

 Let him also synthetize the whole Body from the point now reached, classing the 

 organs first as Apparatus, then as groups, and then let him point out what organs 

 are double and what single, and thus see in a double manner the correctness of the 

 divisions already made. Then let him review the members, and determine what 

 organs exist in each member, and why they should exist where they do. Let him 

 compare the kinds of organs in the different members, and determine their relative 

 numbers. Also, let him observe and describe the organs that are connected with 

 each centre, and determine their relations to each centre; how. for instance, the 

 mouth serves the commercial capital or centre, and how it serves the political cap- 

 itol or centre. In particular, let him show the relation of each organ to the Mind. 



485. What ? 4S6. What are ? 487. "What said? How many Sections 

 has Chapter V. ? To what do they correspond ? 



6* 



