This is an excellent book which outlines the voyages, adventures and scientific contributions of Darwin, Wallace, Huxley and Hooker.
But I strongly disagree with the conspiracy theory put forward by another reviewer (but NOT put forward in this book!) that "Hooker and Huxley ... organised the greatest scam in British scientific history in promoting Darwin at the expense of Wallace - the true discoverer of evolution."
From the book, "The Foundations of The Origin of Species: Two Essays Written in 1842 and 1844", and from Darwin's notebooks, it can be clearly seen that Darwin had developed the theory long before Wallace independently came up with the same idea.
And at a meeting of the Linnaean Society Society in 1908 Wallace himself said this:
"Since the death of Darwin in 1882, I have found myself in the somewhat unusual
position of receiving credit and praise from popular writers under a complete
misapprehension of what my share in Darwin's work really amounted to. It has been
stated (not unfrequently) in the daily and weekly press, that Darwin and myself
discovered "natural selection" simultaneously, while a more daring few have declared
that I was the first to discover it, and that I gave way to Darwin!
In order to avoid further errors of this kind (which this Celebration may possibly
encourage), I think it will be well to give the actual facts as simply and clearly as
possible.
The one fact that connects me with Darwin, and which, I am happy to say, has never
been doubted, is that the idea of what is now termed "natural selection" or "survival
of the fittest", together with its far-reaching consequences, occurred to us
independently, and was first jointly announced before this Society fifty years ago.
But, what is often forgotten by the press and the public, is, that the idea occurred to
Darwin in October 1838, nearly twenty years earlier than to myself (in February
1858); and that during the whole of that twenty years he had been laboriously
collecting evidence from the vast mass of literature of Biology, of Horticulture, and
of Agriculture; as well as himself carrying out ingenious experiments and original
observations, the extent of which is indicated by the range of subjects discussed in
his "Origin of Species", and especially in that wonderful store-house of knowledge
- his "Animals and Plants under Domestication", almost the whole materials for
which works had been collected, and to a large extent systematised, during that,
twenty years."
Incidentally, Darwin became a great friend not only of Huxley and Hooker, but of Wallace, too.