I've been into these sorts of things for longer than I care to admit. And it seems that the more I read the crazier it all gets. Accepted science, which obviously works at some level, is simply missing some fundamental something in the way things work.
I bought an earlier version of this book, used, in 1981. This is an updated and expanded version. Some of the original material has been expanded and some new things, such as "Globsters," have been added. Bob Rickard and John Michell should be deemed national treasures. They cover a lot of territory and are able to keep a sense of humor about it all. There is a tendency, in this field of research, to lambaste the scientific community. There is a bit of that in evidence here but the acid has been kept to a minimum. They report the phenomenon, offer some possible directions for research, but let everyone know that a slippery devil is at play. These phenomenon are rarely well defined. They tend to drift from one into another. For instance: In David Jacobs' book "Secret Life" he documents around 300 cases of alien abductions where the same procedure, to very minute detail, is experienced by the abductees. However, as Pickard and Michell note, there are UFO/alien experiences that are even more surreal and have little, if anything to do with Jacobs' scenerio and contain beings far removed from the ubiquitous "Greys" most often sighted.
One of the things I find frustrating while reading this is that some of these things have been happening and keep happening. They are not isolated instances. They are there to be examined by anyone wishing to do so. They note an instance where a battery, circa 1920s, was found imbedded in rock. It didn't disappear. It's there for anyone who wants to study it. Were I a scientist in some related field (whatever field could be related to something that weird) I'd be all over that.
Statues don't move....sometimes. Photos don't change....sometimes. Frogs don't fall from the sky...sometimes. But there they are. As I mentioned, the scientific community seems to be missing something fundamental in the way the world is made up. One night after a rain I went to walk my dog. When I got to the alley there was a frog (a rather large one) on the ground. At that time I lived nowhere near any source of water that would have played home to such a creature. But there it was.
This book needs to be read by a sizable number of people. I think we need to be reminded that steel, glass and semiconductors play only a partial role in our existence. The world is a far more wonderful place than we might imagine.