I refer to the new, 2011, edition of Rupert Sheldrake's The Presence of the Past : Morphic resonance and the habits of nature.
I bought this book when it was first published in 1988, but didn't properly engage with it and indeed I seem to have lost my copy.
Instead of continuing to wait in hope of its turning-up, I recently bought a copy of the new edition which I have been reading over the past couple of weeks.
It is a superb achievement. Over 500 pages, yet without any padding: clearly yet densely written, scrupulously honest, reliable, careful and fair.
The book is, inter alia, a magnificant example of intellectual history - a crash course in the history of metaphysics and science.
Anyway - I found that all my questions and concerns generated by Sheldrake's other books were answered by Presence of the Past.
It is not the easiest of his books - and maybe it should not be the first book a reader tackles - but PotP is probably the best.