What is the test for alleging a conspiracy to commit a crime?

To appellant's technical argument there is a sufficient technical answer. Count Three charged a conspiracy, and "in an indictment for conspiring to commit an offense in which the conspiracy is the gist of the crime it is not necessary to allege with technical precision all the elements essential to the commission of the offense which is the object of the conspiracy * * *. In charging such a conspiracy `certainty to a common intent, sufficient to identify the offense which the defendants conspired to commit, is all that is necessary.'" Wong Tai v. United States, 273 U.S. 77, 81, 47 S.Ct. 300, 301, 71 L.Ed. 545 (1927).