What books were taken to the Antarctic 100 years ago?

When Sir Ernest Shackleton set off for Antarctica on his ship Endurance, he made sure he had plenty of reading material. But details of precisely what books he took have remained hidden in this photograph - until now. The image from the ill-fated South Pole expedition - taken in early March 1915 by Australian photographer Frank Hurley - has been digitised by the Royal Geographical Society in London.
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