The Circle, Vol. 40, No. 2, Winter 1960-61 The Circle, Vol. 39, No. 1, Autumn 1959 The Circle, Vol. 38, No. 3, Spring 1959 The Circle, Vol. 38, No. 4, Summer 1959 The Circle, Vol. 39, No. 2, Winter 1959-60 The Circle, Vol. 38, No. 1, Autumn 1958 The Circle, Vol. 37, No. 3, Spring 1958 The Circle, Vol. 37, No. 4, Summer 1958 The Circle, Vol. 38, No. 2, Winter 1958-59 The Circle, Vol. 37, No. 1, Autumn 1957 The Circle, Vol. 36, No. 3, Spring 1957 The Circle, Vol. 36, No. 4, Summer 1957 The Circle, Vol. 37, No. 2, Winter 1957-58 The Circle, Vol. 36, No. 1, Autumn 1956 The Circle, Vol. 35, No. 3, Spring 1956 The Circle, Vol. 35, No. 4, Summer 1956 The Circle, Vol. 36, No. 2, Winter 1956-57 The Circle, Vol. 35, No. 1, Autumn 1955 The Circle, Vol. 34, No. 3, Spring 1955 The Circle, Vol. 34, No. 4, Summer 1955