In responsa al question de Daniele Nicolucci (Jollino):
    "... qual es le pronunciation recommendate pro "scientia"? ..."

io scribeva:
    "Interlingua-English Dictionary dice:
    c before e, i, y like ts in hats (or optionally, like c in city);
...
    Dunque (normalmente) [stsientsia] o (optionalmente) [siensia]."

Correction:
    Le pronunciation optional es [sientsia]. Le -tia naturalmente non
deveni -sia. IED indica: ... ti before vowels, unless stressed or
preceded by s, like tsy in 'he gets you'.

Bent