I'd never heard of that book before, so thanks for the tip. I grabbed a copy and, as I did, noticed that it was first published in 1977 and began with this:

Dedicated to those individuals who are trying to pull together diverse aspects of nature into one new, meaningful whole ...

I remember those times and all the varied areas of investigation. Books like this were just one, but people were also interested in ideas like detecting auras with Kirlian photography, regrowing limbs like axolotls, psychic phenomena like telepathy and precognition, personal computers right in your own home, it went on and on.

It felt like the world was on the verge of great leaps of human development. It's impossible to describe that sense of potential, but I can only say it has all been lost. I'm glad you picked up a shard of something that was once much larger.