Hi, In clearing out my office at Bangor University (which for two years or more I have hardly used) I came across the first version of my work with Chris Spencer; this was rejected by Saunders for JPAA, after two negative reports (one described it as "good file drawer stuff", and the other remarked that part was known to Verdier and not published. So it was eventually revised into 2 papers, and published elsewhere, in 1976. I decided to scan it to have it on my files, and in case anyone else was interested. It contains some accounts of homotopies and a Whitehead theorem, not published elsewhere, except as part of work in the mid 1980s with Philip Higgins. So this is now available, as they say "as is", on my preprint page, http://pages.bangor.ac.uk/~mas010/brownpr.html <http://pages.bangor.ac.uk/%7Emas010/brownpr.html> which also has a recent presentation on John Robinson, sculptor. Ronnie -- my web page: http://www.bangor.ac.uk/r.brown Our Snowdonia Holiday cottage: http://www.tremyfoel.co.uk [For admin and other information see: http://www.mta.ca/~cat-dist/ ]