REVERSION, NOT A LAW, SUI GENERIS. 113 



play its reparative power, or nisus formativus, in order 

 to restore the lost integrity. The greater activity does 

 not cause the functional, or structural increase. That 

 is but a condition. The absence of such activity has 

 atrophied, or reduced the organ. The subsequent 

 restoration of such condition, occasions the re-de- 

 velopment. There is but one normal coordination 

 of the parts of any one species. The absence of 

 any part, or organ, impairs such coordination. By 

 disintegration; by the loss of tissue, consequent upon 

 a wound; or, by the loss or reduction of a character or 

 organ, either suddenly by dismemberment, or by the 

 slow operation of adverse conditions, this coordina- 

 tion is rendered abnormal. Perfect coordination is 

 compatible, only with the sum of all the characters 

 and parts, of a species, fully and proportionately 

 developed. When all the parts are present, and the 

 full complement of tissue is realized, in the individual, 

 the coordination is active, perfect, and normal, in each 

 and every part. When a part is missing, impaired co- 

 ordination results; but, the remaining parts are corre- 

 lated to the parts missing; and this correlation, being 

 essentially a coordinating power, — which acts equally 

 when a part is missing, or present, — the reintegration 

 of the lost part results, when the conditions allow. 

 The same force which binds the given part, when 

 present, to the whole, restores it when lost. If a num- 

 ber of parts be missing, or reduced, and the conditions 

 (increased activity, &c), be exclusively propitious to 

 the re-development of one of such parts; then, that 

 part alone will develop. 



