The following are scanned page images of a manuscript written in August 1979 at the Nuffield Workshop on Quantum Gravity at DAMTP, Cambridge University, Cambridge, England. The manuscript was typed by the DAMTP secretariat at the end of the workshop and was distributed privately to the organizers of the workshop.
The manuscript expanded on a talk given on August 13, 1979 at the Nuffield Workshop on Quantum Gravity. The same talk was given earlier at the Mathematics and Physics Conference at the University of Durham, Durham, England in July 1979 and later at the Nato Advanced Study Institute on Recent Developments in Gauge Theories at Cargese, France in August, 1979.
The work that was described in the talks and in the manuscript was later published as
The manuscript in 72 dpi GIF format (270 KB)
Individual pages in 72 dpi GIF format (15 KB per page)
A PDF file of the manuscript for A4 paper, containing 300dpi scanned images of the original 19 A4 manuscript pages (800 KB)
A PDF file of the manuscript for US letter paper, containing the scanned images reduced in size by a factor of 1.2, to 360dpi (800 KB)