A quick question about history of science. Alfred Wallace's 1903 book "Man's Place in the Universe" is usually considered the earliest precursor of contemporary astrobiology, since it applies the Darwinian (-Wallacean :o)) theory of biological evolution to life at large, beyond the boundaries of our planet. However, I wonder was there any previous discussion of it in the 1859-1903 period? After all, those were more than 4 decades of very vigorous scientific activity and speculation in the time when most educated people believed in life and intelligence beyond Earth. Do you know of any such reference? (I'm interested in specifically evolutionary discussions, not just any mention of extraterrestrial life, channels on Mars, etc. there were many of those.)

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