I think we have squeezed this about as far as is possible. The response has been very good  and I would like to say a big thank you to everyone who has helped. The meaning is now quite clear and it is better to admit that a few words are simply unreadable rather than resort to putting in guesses which happen to more or less make sense. The recent discussion "What do I do with the...." shows that opinions differ widely as to what is acceptable practice. Graham Pollett