Letter from Carrie Gold to Dr A W Wolfendalyk Department of Physics Science Laboratories, South Road, University fo Durham, Durham DH1 3LE, England Enclosing the manuscript for Professor Gold's talk at the Royal Society on February 21. She is sorry for the delay in sending it; Professor Gold has been out of town quite a bit since his trip to London, and has thus had very little tome to write up his talk. 20 March 1974