Charles Darwin liked orchids

Darwin's immortality derives from his book, On the Origin of Species by Means of Natural Selection, which changed the world forever.  However, he had diverse interests and was a tireless investigator.  He was an enthusiastic gardener and had a greenhouse at Down House, his home.  One of his other books was, On the Various Contrivances by Which British and Foreign Orchids are Fertilised by Insects.  Now, thanks to the an amazing amount of work by many people, you can find this book along with all of Darwin's writings online at a single place - and all for free.