Thrutch “The Journal of Aberystwyth Caving Club” Thrutch Vol. 1 – Christmas 1979 Thrutch Vol. 2 – Winter 1980 Thrutch Vol. 3 – Easter 1980 Thrutch Vol. 4 – Summer 1980 Thrutch Vol. 5 – December 1980 Thrutch Vol. 6 – August 1981 Thrutch Vol. 7 – May 1982 Thrutch Vol. 8 – 1982 Thrutch Vol. 9 – May 1984 Thrutch Vol. 10 – May 1985 Thrutch Vol. 11 – 1984-1985 Thrutch Vol. 12 – 1985-1986 Thrutch Vol. 13 – 1986-1987 Thrutch Vol. 14 – 1987-1988
