MR. A. B. KEMPB ON THE THEORY OE MATHEMATICAL FORM. 
41 
ce- 
9 >- 
..r 
Fig. 52. 
251. If w=ll we have 1, 
< S >=(A ) 5 
<2 
5 T = 
252. If w=12 we have f=5, 
1 \* 2 3 4 6 
12 / 64 ‘ 3 ’ 2 5 
/ g \ _/^\ 3 2 3 4 6 ~ _ 
V D /i — 1 19 « 7 o o’ u i — 
T — 
> -M — 
Fig. 54. 
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MDCCCLXXXVI. 
