The Emerald of Sigma Pi, Vol. 33, No. 1, May 1946 The Emerald of Sigma Pi, Vol. 33, No. 2, August 1946 The Emerald of Sigma Pi, Vol. 33, No. 3, November 1946 The Emerald of Sigma Pi, Vol. 33, No. 4, February 1947 The Emerald of Sigma Pi, Vol. 34, No. 1, May 1947 The Emerald of Sigma Pi, Vol. 34, No. 2, August 1947 The Emerald of Sigma Pi, Vol. 34, No. 3, November 1947 The Emerald of Sigma Pi, Vol. 34, No. 4, February 1948 The Emerald of Sigma Pi, Vol. 35, No. 1, May 1948 The Emerald of Sigma Pi, Vol. 35, No. 2, August 1948 The Emerald of Sigma Pi, Vol. 35, No. 3, November 1948 The Emerald of Sigma Pi, Vol. 35, No. 4, February 1949 The Emerald of Sigma Pi, Vol. 36, No. 1, May 1949 The Emerald of Sigma Pi, Vol. 36, No. 2, August 1949 The Emerald of Sigma Pi, Vol. 36, No. 3, November 1949 The Emerald of Sigma Pi, Vol. 36, No. 4, February 1950 The Emerald of Sigma Pi, Vol. 37, No. 1, May 1950 The Emerald of Sigma Pi, Vol. 37, No. 2, August 1950 The Emerald of Sigma Pi, Vol. 37, No. 3, November 1950 The Emerald of Sigma Pi, Vol. 37, No. 4, February 1951