Some images on this site have been posted on the basis of the dictum that it is better to beg forgiveness than to ask permission. The images are solely to enhance and occasionally elucidate the accompanying text and constitutes, according to legal opinion, fair dealing as allowed under copyright law. But let’s not dicker, vicar: we hereby thank all creators of such images in the sure and certain hope that we will delivered of ex post facto permission, especially where we attempt to make due and appreciative attribution. Special thanks to Wikimedia Commons Images – unattributed pictures are either generic samples from that service or else are taken by TVC. The choice of images is, of course, the sole responsibility of TVC.