|Alternative reference number||NLB/11 p123|
|Title||Copy letter from Herbert Rix, to Dr W R Jack, Physiological Laboratory, The University, Glasgow|
|Date||21 May 1895|
|Description||'Herewith enclosed I beg leave to return you the key of your box of negatives, which has been despatched to you by rail. |
I am, yours truly,
Asst. Sec. R.S. [Assistant Secretary, Royal Society]'.