Large collection of 61 assorted publications by the Cave Research Group of Great Britain (amalgamated into the the British Cave Research Association in 1974), including two copies of THE CONSTITUTION (4th printing, January 1966) together with ADDRESS LIST OF MEMBERS ( at 28th April 1967 & update at 31st December 1968), plus COMPLETE LIST OF THE GROUPS' PUBLICATIONS (corrected to 1st January 1967), NEWSLETTER, Nos.100 (March 1966) to 116, 118 to 128, 132-134, and TRANSACTIONS, Volume 8 (number 1, 1966 & no.2, July 1966), vol.9 (nos.1, 2, 3), v.10 (nos.1, 2, 3), v.11 (nos.1, 2, 3, 4), v.12 (nos.1, 2, 3, 4), v.13 (nos.1, 2, 3, 4), v.15 (nos.1, 2, 3).