In copyright
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Credit
Copy of a letter from Pontecorvo to Dr A Campbell of Glaxo Laboratories Ltd concerning two PhD students, K D Macdonald and Lois Hemmons, who were working as research assistants in his laboratory to complete their PhD theses. In copyright. Source: Wellcome Collection.
Provider
The original material is held at <a href="http://www.gla.ac.uk/services/archives/" rel="nofollow">Glasgow University Archive Services.</a> This catalogue is held by the Wellcome Library as part of Codebreakers: Makers of Modern Genetics.