The "Scott 100 letters" campaign intends to mirror the success of Captain Scott's letter in 1912 to his own grandson which he wrote before his death in a tent in freezing weather conditions.
His letter inspired his grandson to start the Wildfowl and Wetlands Trust in London
I think it's fair to say that my grandfather's expedition to Antarctica a hundred years ago was pretty inspirational.
"He is remembered for his passion for Antarctic exploration and science, for the courage and endurance of his journey to the South Pole, and for a job done to the highest standards in the face of overwhelming adversity.
"But one of the most amazing parts of the story is that during those last days, while trapped in the tent, with temperatures outside at minus 70C, exhausted and freezing to death, my grandfather wrote a diary and letters to all the people that supported him, and a last letter to his wife, my grandmother, Kathleen.
"In that letter he wrote 'I am anxious for you and the boy's future - make the boy interested in natural history if you can, it is better than gamers, they encourage it at some schools - I know that will keep him in the open air.'
"Through this letter my grandmother encouraged my father, Peter, to become passionate about natural history, and eventually led to his founding of the Wildfowl and Wetlands Trust."
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The celluloid negatives were taken at the expedition base camp and show Scott's group preparing for their Terra Nova Expedition of 1911.