Which preposition to use with causa

in Occurrences 2%

Corporis itidem morbi animam per consensum, a lege consortii afficiunt, et quanquam objecta multos motus turbulentos in homine concitet, praecipua tamen causa in corde et humoribus spiritibusque consistit, &c. 2407.

of Occurrences 2%

Not only the physiological but the psychological side of the problem has to be considered, and it would be hard to decide which is the more important or which the vera causa of the other's reaction.

for Occurrences 1%

It has not come out of him into consciousness, purpose, and act; and is to be treated as non-existent: while what has come out, his passions and senses, is enough to explain all the vagaries of superstition; a vera causa for all its phenomena.

Which preposition to use with  causa