Believe me, they've done a lot of searching; most of it sub rosa.
Business is transacted on Sabbath eve; but this, of course, sub rosa.
There was the revelation of some that had existed before, sub rosa.
Mr. Roosevelt (this was said sub rosa) had not been too Radical, but too frank.
It was generally known, sub rosa, that Hildreth and I were living together.
The ancients ...