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https://library.rds.ie/files/26-10.pdf
Item of correspondence from GFF letters
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https://library.rds.ie/files/26-11.pdf
Item of correspondence from GFF letters
Collection

https://library.rds.ie/files/26-12.pdf
Item of correspondence from GFF letters
Collection

https://library.rds.ie/files/26-17.pdf
Two letter from H. Ayrton to professor Fitzgerald one dated Oct. 8 1896, the other undated.
Collection