Recently there was long thread about the BCA. I can now post possible answers to some of the questions, such as "Why is the BCA still raising membership prices when there is a significant amount still left in its coffers?"
David Roberts has emailed the caving library but all my replies are bouncing. If anyone knows him (or he reads this) please let him know. I think he is from Skye.
Jenny may know. David contributed the David Roberts Slide Collection to the BCRA Online Archive six or seven years ago, and there must have been some communication at the time.