REMOVE

1. Letters
2. Correspondence
3. 1826-07-05

WHAT

1. Science--Great Britain (3)

WHERE

1. England: Greater Manchest … (3)
2. Wales: Anglesey (3)

WHO

1. Dalton, John, 1766-1844 (3)
2. Johns, William, 1771-1845 (3)

WHEN

1. 19th Century CE (3)