I have a couple of books written by Robert Wearing and do enjoy reading his work. However on page 252, Appendix I of “The Essential Woodworker” there is a description and drawing on ‘Diminishing Dovetails’. No matter which direction I turn the book, which pair of glasses I have on or which chair I’m seated in when reading this can I figure out what he was talking about. Thanks,BobEI spoke I should have added this excerpt from the book as context. I’m not sure what the rules are of posting without permission but the entire publication can be purchased from Lost Art Press.