The Invention of Photography
In Our Time
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Talbot's Calatyping Process
Talbot had a scientific friend called David Brewster who was based at St Andrews University and they were in correspondence. Talbot is sending letters to Brewster and explaining what his process is. And Brewster suggests to him, in fact he says in so many words, don't extend your patent to Scotland, it would be unprofitable. At that point you had to take out patents in all three of the kingdoms,. England, Scotland and Ireland, and it was vastly expensive and really very troublesome. So, Talbot on his friend's advice didn't. And then I think was probably very annoyed to see how it was taken up by the famous partnership of Hill and Adamson.
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