This digitised material is free to access, but contains information or visuals that may:<ul><li>include personal details of living individuals</li><li>be upsetting or distressing</li><li>be explicit or graphic</li><li>include objects and images of objects decontextualised in a way that is offensive to the originating culture.</li></ul>By viewing this material, we ask that you use the content lawfully, ethically and responsibly under the conditions set out in our <a href="https://wellcomecollection.cdn.prismic.io/wellcomecollection/d4817da5-c71a-4151-81c4-83e39ad4f5b3_Wellcome+Collection_Access+Policy_Aug+2020.pdf">Access Policy</a>.

You must accept the terms to view the content.

Correspondence: M

Galleries and Reading Room

Library

Shop

Café

From January 2026 Wellcome Collection will close at 18.00 on Thursdays.

We're running paid user research studies to improve Wellcome Collection online

Take part in research

The correspondents are:
Prof. William H. McClain, Prof. Edwin H. McConkey, Dr. Michael McConnell, William Brendan McPhillips, Prof. Bryan Magee, Dr. Pedro C. Marijuan, Dr. Manuel Martin-Loeches, Michael Mautner, Dr. Gero Miesenbock, W. R. Winfield (Headmaster, Mill Hill School), Dr. Greg Morgan, and Dr. A. K. Mukhopadhyay.
Also includes letters and printed emails relating to Matt Meselson, and paper by John D. Mantzos entitled 'The Sympan'

Content advisory

Correspondence: M

Licence and re-use