PEOFESSOE CAYLEY ON CUBIC SUEFACES. 
251 
if) 
iff) 
(h) 
0 
0 
0 
(12 =*0 
0 
0 
0 
.( 2'=5j) 
0 
0 
0 
( l=o») 
1 
0 
— n 
m 
( 2=« 2 ) 
n 
0 
-l 
(23 =»0 
—m 
l 
0 
( 3'=c s ) 
0 
l 
n 
l 
m 
( l' = «s) 
l 
n 
0 
1 
~l 
( 3=5 3 ) 
i 
m 
1 
l 
0 
(13 ==f 3 ) 
0 
_i 
n 
m 
(34 =« 4 ) 
n 
0 
1 
(24 =5 4 ) 
l 
m 
l 
0 
(14 =c 4 ) | 
2 m 2 
