of a stay pending such hearing can be corrected by Courts of Appeals through issuance of mandamus. Fed. Rules Crim.Proc. rule 41(e), 18 U.S.C.A. Kenneth P. Ray, Asst. U. S. Atty., Syracuse. N. Y. (Theodore F. Bowes. U. S. Atty., Northern Dist. of New York, Syracuse, New York, on the brief), for appellant