A MEMOIR ON CUBIC SURFACES.
379
(/)
(9)
(4)
0
0
0
(12
= «i)
0
0
0
( 2'
= &i)
0
0
0
( 1
=
0
— n
m
( 2
— a 2 )
n
0
-l
(23
= «
— m
l
0
( 3'
= C 2 )
0
1
n
1
m
( 1'
= «»)
1
n
0
1
l
( 3
= ¿3)
1
m
1
l
0
(13
~ C 3)
0
1
n
m
(34
= «4)
n
0
1
l
(24
= K)
1
in
l
0
(14
= c 4)