S6 OBSER V ATIO NES 



Ordo I, Ordo IL Ordo IIL 



+«A"-'C+"-^^^A'^-'2BC 

 +;2A"~*D+"ifii2A'^-^(2BD-fCC) 

 + « A" ' ^ E + "-i^^ A ^ - ^ ( 2 B E -f 2 C D ; 



' 1.2 ^ 



4- « A'^-' F4-"ii?^A"- •( 2 B F + 2C E4-DD) 

 + «A^-^G+^4;^-i^A'^-^(2BG-i-2CF+2DE) 

 etc. etc. 



Ordo IV. 



, n(n-4)( n-5)^n-6 j^» 



I. 2. 3. 



4-"-^^^=^^A^-«(3B'D+3BCM 

 4-"-^^^^^LV-^(3B'E + 5BCD + C') 

 , nrn-o(i^) A"-"^(3BT + 5BCE+ 3BDD+ 3 CCD 



I. 2» 3 ^^ 



etc. 

 Ordo V. 



'\ B(n — s) ( it — 6) ( T t — 7) A n — 8 "R* 



I. 2. 3. 4 

 , n(n— 6 )(n-7](n- s) a n — 5 4. R^ C 



"• J. 2. J. 4» ^ 



, n(n-7)(n-8) (n-p)^n,,e/^-p^^n_|,^7^--p^>> 



I. 2. 3. + 



^n(n-»)(n-9)(n-^)^n-r./^J3^g^j^]3'(^p_^^3^s^ 



I . .2 o. 4 



^n(n-.p)(n-,o)(n-n)^n-T2^^|3^p^^^j^^(;^g^^]j--]3' 



+ i2BC'D+C') 

 etc. 



1. 2. 



Or^iO 



