REMOVE

1. Letters
2. Correspondence
3. England: Cumbria: Carlisle

WHAT

1. Science--Great Britain (2)

WHERE

1. England: Cumbria: Kendal (2)
2. England: Greater Manchest … (2)

WHO

1. Dalton, John, 1766-1844 (2)

WHEN

1. 19th Century CE (2)
2. [date not identified] (2)