There are four other wolves in the major thirds. But, in order to 

 explain this part of the subject, it will be necessary first to shew that there are 

 four series of major thirds which are unalterably distinct from each other. 

 Those four series are shewn, in four columns, in the following table of 

 successive major thirds, where the four keys C, G, D, A, are placed, in 

 the lowest line, in the order of occurrence as successive quints. The other keys 

 are then to be placed, as major thirds, in the regular order shewn in the table. 



TABLE OF SUCCESSIVE MAJOR THIRDS. 



(Read each column from the bottom upwards.) 



First, Second, Third, 



or or or 



C column. G column. D column. 



Middle 

 C. 



First bass 

 A flat. 



First bass 

 E. 



First bass 



C; 



or key-note. 



Higher 



octaves 



of the keys 



in the first 



column. 



By inspecting the above simple table, it will clearly appear that the 

 following series of major thirds, viz. C, E ; — E, G sharp, which is the same 

 key as A flat ; — and A flat, C, forms a column, in which those three successive 

 major thirds return in constant and regular succession, without ever including 

 in that series any of the other nine major thirds. So that, nature has, as it 

 were, (if I may be allowed the expression,) imprisoned that series of three 

 major thirds in a column by itself. , . 



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