concept

Galleries and Reading Room

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Please note, you will be unable to request items in our collections online from 20:00 on Tuesday 9 July to 06:00 on Wednesday 10 July due to essential maintenance work to our systems. Thank you for your understanding.

We’re undertaking some research with website visitors to learn more about how people find access-related information provided by museums. This survey shouldn't take longer than 10 minutes to complete. Thank you for your time!

Ions--Migration and velocity