That seemed to be the only character needed by ALGOL 60 that I was
lacking.
{"\00\00\00\00\00\00\37\00\00", U(23BC), JOIN_L }, /* horizontal scan 7 */
{"\00\00\00\00\00\00\00\00\37", U(23BD), JOIN_L }, /* horizontal scan 9 */
{"\04\04\37\00\16\00\04\00\00", U(23DA) }, /* earth */
+ {"\00\00\00\00\22\25\25\25\22", U(23E8) }, /* decimal exponent symbol */
/* Control pictures */
{"\32\26\22\22\00\11\11\11\06", U(2400) }, /* NUL */