Refined borax b.p. : over 50 years service to the public.. / Hartley-Rae Ltd.

Boric acid or boriacic powder b.p. quality : over 50 years service to the public.. / Hartley-Rae Ltd.

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Due to essential maintenance, we won’t be able to retrieve items from our closed stores over the weekend. Please submit requests for Monday 20 April by 10:00 on Friday 17 April. The library will remain open as usual. Thank you for your understanding.

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

Hartley-Rae Ltd

Works from the collections

Refined borax b.p. : over 50 years service to the public.. / Hartley-Rae Ltd.

Boric acid or boriacic powder b.p. quality : over 50 years service to the public.. / Hartley-Rae Ltd.