subject to

He invited me to go with them, saying, "We have a most interesting subject to-night."

What share we may have in the marring or the mending of this our transitory dwelling, that is our main subject to-day.

Whilst speaking on this subject to-day, I related what was said to be a well authenticated fact which I lately read.

All right, old man, have it as you please; only let's steer clear of a useless discussion of the subject to-night.

A writer on the same subject to-day would to all certainty make use of the same general methods.