84 



MEMOIRS NATIONAL ACADEMY OF SCIENCES. 



[Vol. XIV 



III 



III 



III 



III 



III 



III 



III 



III 



III 

 III 

 III 



III 



III 



IV 



V: 



V 

 V 



VI 

 VI 



VI 



VI 



VI 



VI 



VI 



VI 



VI 



VI 



VI 



VI 



VI 



VI 



VII 



14=21 by 



<l 

 <\ 



-G 

 -G 



15=20 by 



16=19 by 



17=26 by 



18=32 by 



in= 1 by 



20= 3 by 



21=27 by 



22=22 by 



23 =a new groupless 



24= 2 by s=(j 



25=V472 by s=(^^ 



26=31 by s=Q 



]=IAby ..=(J 



]=V4/32 by s=A 



2=V461 by s=( ^ 



3=II4/J1 by s=A 

 Vi 



1=23 by s=(^. 



2=a new groupless 



3=18 by s=Q 



4=33 by 



5=16 by 



6=17 by 



7=30 by 



8=29 by 



8 9 10 11 12 13 14 15\ 



/ rf 8 5 c 3 7 6/ 



8 9 10 11 12 13 14 15\ 



8 7 d A I f e gj 



2 3 4 5 6 7 



6 10^42 



2 3 4 5 6 7 



c 2 3 5 6 6 



2 3 4 5 6 7 



d 3 6 4 5 7 



2 3 4 5 6 7 



d 7 g c e 8 



2 3 4 5 6 7 



c 6 / 3 d 4 



2 3 4 5 6 7 



6 4 c 1 / 7 



2 3 4 5 6 7 



c 4 e 1 d 3 



2 3 4 5 6 7 



/ 6 c 2 jr 4 



2 3 4 5 6 7 



6 6 8 5 e d 

 jystem. (Reference number 35.) 



2 3 4 5 6 7 8 9 10 11 12 13 14 



34 cl/725da6 



2 3 4 5 6 7 8 9 10 11 12 13 



9 10 11 12 13 



c / 8 a 6 



9 10 11 12 13 14 



/ 1 6 c 2 5 



9 10 11 12 13 



1 6 c ^ 2 



9 10 11 12 13 



5 d a 6 g 



9 10 11 12 13 14 15\ 



6r 6 a 8 5 / 6^ 



9 10 11 12 13 



a 7 1 d b 



9 10 11 12 13 



3 1 a 7 2 



14 15\ 

 2 gj 



14 15\ 

 5 aj 



14 15\ 

 a 8) 



14 15\ 

 8 e) 



14 15\ 

 / h) 



14 15\ 

 e 8/ 



14 15\ 



c y) 



C A bi a^ d^ c^ d, c^ b^ a^ 63 



2 3 4 5 6 7 8 9 10 11 12 13 

 /65(f8ea3172c 



2 3 4 5 6 7 8 9 10 11 12 13 14 

 /6acecf45631 



2 3 4 5 6 7 8 9 10 11 12 13 14 15 \ 

 «! flj C a^ Og $2 di B A d^ d^ b^ b^ b^J 



2 3 4 5 6 7 8 9 10 11 12 13 14 15 \ 



<■, Oj C 03 Oi e^ di A B d^ rf, 63 6, 5,/ 



4 15\ 

 g f) 



13 14 15 \ 



"3 '^2 <^\' 



14 15\ 

 4 ?/ 

 4 15\ 

 7 2/ 



-G 

 -G 



-e 



-G 



9=VI33c<bys=Q^ 

 10=VI3,7bys=(^^ 

 11=111, by s=Q^ 

 12=12 by s=A, 

 13=1113 by s=(^^ 

 14=VI337by«=Q^ 

 15=1112 by s=Q 

 =VIIby .=(1 



C 03 C2 O2 a, r3 rfj .(4 b^ d^B d^ 63 62 



2 3 4 5 6 7 8 9 10 11 12 13 14 15 

 6672alc5'34de85 



system. (Reference number 36.) 



2 3 4 5 6 7 8 9 10 11 12 13 14 15 

 8c«/561a967243 



2 3 4 5 6 7 8 9 10 11 12 

 535rc4266dc 



2 3 4 5 6 7 8 9 10 11 12 13 14 15 \ 



C, C3 62 Qi (ij i\ O-l h "3 «3 Ci C2 «2 ''3/ 



2 3 4 5 6 

 64 65 04 ^ B 



5> 3 4 5 6 



} 



D 

 I) 



12 13 14 15\ 

 a 1 8 7/ 



14 15 \ 



«2 bj 

 14 15\ 

 6 3/ 



D 



9 



6, 

 7 8 



9 10 11 12 13 14 

 a e 1 d 



9 10 11 12 13 14 15\ 



d c 4 a 6 / 1/ 



9 10 11 12 13 14 15"^ 

 a 6 g f c 8 c^ 



9 10 11 12 13 14 15 \ 



«! 61 C 62 fls °2 "6/ 



9 10 11 12 13 14 15> 



'^ 



a, 05 62 Oa 04 64 65 02 65 6, 03 63 A CJ 

 23456789 



C| 03 U2 ^2 ''3 ^3 ^2 



2 3 4 5 6 7 8 9 10 11 12 13 

 la625768435rc 



2 3 4 5 6 7 8 9 10 11 12 13 14 



9 10 11 12 13 14 15 \ 

 02 c/3 61 di Oi f, ej 



14 15\ 



\ 15 \ 



'1 «3/ 



15) 



2 05/ 











2 3 4 5 6 7 8 9 10 11 12 13 14 



64 b^ b,B A 04 Qj ie C" 61 Oi a^ b^ u^/ 



2 3 4 5 6 7 8 9 10 11 12 13 14 15 \ 



03 C3 ^2 fli 'h di C3 c, 63 62 ("i ("z ''2 *i/ 

 2 3 4 5 6 7 8 9 10 11 12 13 14 15> 

 /4137gr2c58rfe6 6> 



