For an overview of EIDAS: See About Eidas.

At present EIDAS comprises mainly Closed Research Files, being document files compiled by Colin C. Sanderson over some forty-five years and more.  These are preparatory to the full-scale development of EIDAS as a multi-authored reference work subject to synoptic control of an Editor-in-Chief.  Access will be given on a selective basis as part of this process.

Once provided with access, please go here.