Bulletin of the National Research Council. Bull. Natl. Res. Counc. National Research Council (U.S.) Research. Q11 .N292 513 UNB Title from cover. No. 1-57 called also v. 1, pt. 1-v. 11, pt. 3. No. 122 is dated Apr. 1951. Merged with: Reprint and circular series (National Research Council (U.S.)), to form: Publication (National Research Council (U.S.)). Washington, D.C. : National Research Council of the National Academy of Sciences, 1919-1950. 1919-1950. 1919 Text Collection 395 p. : eng Reprint and circular series (National Research Council (U.S.)) Publication (National Research Council (U.S.))