4: The Government Scientist. In the last of his series on flawed genius, Adam Hart-Davis explores how botanist Joseph Banks kept his grip on England's scientific endeavours for over 40 years, how he paid his way around the world with James Cook in 1769, started plant collections which form the basis of the Natural History Museum and Kew Gardens , and invented his own gigantic carriage. Plus, what did Banks get up to in the South Sea islands? The reader is Bill Wallis. Producer Mary Ward Lowery