260 THE REIGN OF LAW. 



things outside the organism in which those growths 

 occur, — and which can exert no physical effect upon 

 it, — suggest at once the operation of Forces work- 

 ing under Adjustment with a view to Purpose. 



When we see a Mineral salt crystallising under 

 the power of a Voltaic Current, we see Correlation 

 of Growth in its simplest form, and in visible con- 

 nexion with its immediate cause. The particles 

 of salt are marshalled in a constant Order — an 

 Order the principle of which is some central axis 

 with branches and branchlets grouped around it 

 in equal and exquisite arrangement. Wonderful 

 as this arrangement is, it suggests no other ques- 

 tion to the mind than that which may be asked 

 in respect to the ultimate nature and source of 

 Polarity in Magnetic Force. But when we see 

 two growths in an organism which not only 

 are correlated to each other with reference to 

 a centre, but are correlated also to external 

 things with reference to Function — we see some- 

 thing which raises questions altogether different 

 in kind. We have passed at once from the region 

 of the What, and the How, into the region 

 of the Why. The one kind of Correlation has 



