"... your existing Contract of Employment will be replaced on 1st April, 1994. Your new contractual terms applicable from 1st April, 1994, will generally be as specified in the proposed Terms and Conditions ... supplied ... on 20th December, 1993. ... these terms will be the subject of further discussion and consultation. ..."
"This is without prejudice to any legal action in regard to the termination of my previous contract."
"The terms of those letters leave us in no doubt that he agreed, without objection, to work under the new terms and conditions. He did, however, preserve his right to say that he had been dismissed. We have found against him on that point"