If you are looking for links of the format "#id1989-161-39" they are in log.htm not in this file. Yes, an enthusuast could manually edit this file to match those trip ids. If you really want to.
Webeditors notes: this log has been rendered
using the same ink colours as in the original book. Often, this makes it
clearer when comments have been added by other writers. We hope you
don't think it looks too messy - original logbooks, after all, are
messy !
The first part of the log is traditionally taken up by the journey out.
If this is of no interest, here is a link
to the caving!