I miss out on a lot of things. Here i have captured some of that. I did so by cutting the top off an empty beer can, placed some photo-sensitive paper inside, sealed it up tightly, poked a hole in the side to let the light in and strapped it to something mostly stable outside. And then I forgot about it as i got on with some other common distraction...

In the words of the author Dr Deborah Wardle, Bill Sampson’s “intelligent application of his work to each chapter greatly enhances the book. His images illustrate how coalescence between surface and subterranean water and imaginary places can expand and shape imaginary invocations of groundwater’s presence.”

I thought to draw with expanding polyurethane foam contained in pressure cans – three dimensionally as it is sculptural when it expands. But it wouldn’t stand up. So I tried it in polystyrene beads and viola! 3-D drawing (sans printer) is invented.

‘Scotoma’ means ‘blind spot’ and ‘IX’ is a reference to Chapter 9 of the Book of Revelations from which Book, Albrecht Dürer drew the angels such as appear here.