Copy of letter to James Challis
Copy of letter to James Challis
Copy of letter to G.B. Airy
Copy of letter to G.B. Airy
Copy of letter to G.B. Airy
Copy of letter to G.B. Airy
Copy of letter to J.C. Adams
Copy of letter to J.C. Adams
Copy of letter to G.B. Airy
Copy of letter to G.B. Airy
Transcripts of letters from the Royal Greenwich Observatory, made for Donald MacAlister
Transcripts of letters from the Royal Greenwich Observatory, made for Donald MacAlister
Copy of letter to G.B. Airy
Copy of letter to G.B. Airy
Copy of letter to G.B. Airy
Copy of letter to G.B. Airy
Copy of letter to J.C. Adams
Copy of letter to J.C. Adams
Copy of letter to J.C. Adams
Copy of letter to J.C. Adams