Object Type: Folder
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Set of slides showing various frequency or death rates from different types of tuberculosis and/or in different countries. Some of the slides were created [for Sir William John Thompson] by Thomas Mason, others were obtained from J Lizars Opticians in Edinburgh.
[1910s-1920s]
Several incomplete sets of slides showing mortality rates by diseases. Slides were produced by Thomas Mason [for Sir William John Thompson.]
[1920]
