Browsing Correspondence by Subject
Now showing items 43-62 of 787
Subject |
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Adams, Dudley, 1795, camara, obscura, optical, machine, lens, optics [1] |
Addington [1] |
Agnes [1] |
Aiken [1] |
Air bottles [1] |
Air Pump [1] |
Alex [2] |
Alex Hare [1] |
Alex Taylor [1] |
Alexander Copland [1] |
Alexander Fergussour [1] |
Alexander Orr [1] |
Alkali [1] |
Allan Toulis [1] |
Americans [1] |
ancient war [1] |
Anderson [5] |
Andrew Crosbie [1] |
Andrew Ewart [1] |
Andrew Mitchell [1] |