United States v. Hall et al, 178 F.2d 853 (2d Cir. 1950)

"Miss Watson has already entered a plea of guilty, as you have been advised, to being a member of this conspiracy. That sets out that Mrs. Watson, the two defendants, and `others unknown to the jury.' So you may consider, you may take into consideration that when she entered her plea of guilty she may have had in mind all of the parties or the unknown conspirators. Take all that into consideration in arriving at your verdict."

The phrase is Mr. Justice Jackson's, used with a somewhat different connotation, in Krulewitch v. United States, supra, 336 U. S. at page 445, 69 S. Ct. 716, 719