Letter from Thomas Gold to Mr Oscar Guth, Executive officer, School of Physics, University fo Sydney, Sydney, New South Wales, Australia Encloses another three pictures and captions that were not ready when he sent the others. He leaves it to Guth to select what he wants to print from the whole stack he now has. Asks for confirmation that he retains copyright to this material, as he will want to use some of it in a textbook. 3 April 1975