REMOVE

1. Letters
2. Science--Great Britain

WHAT

1. Correspondence (53)

WHERE

1. England: Greater Manches … (52)
2. England: Greater London: … (16)
3. England: Hertfordshire: L … (8)
4. Wales: Anglesey (6)
5. England: Devon: Totnes (3)

WHO

1. Dalton, John, 1766-1844 (52)
2. Johns, William, 1771-184 … (32)
3. Henry, (William) Charles, … (5)
4. Barrow, John, Sir, 1764-1 … (3)
5. Woolley, James, 1811-1858 (3)

WHEN

1. 19th Century CE (52)
2. 1853-09-23 (5)
3. 1807-04-19 (3)
4. 1809-12-27 (3)
5. 1818-06-30 (3)