A paper, on the patent azimuth and steering compass invented by E.J. Dent ... [together with a paper on the shape of the wheel-teeth in the clock for the new Royal Exchange] / Presented to the ... British Association for the advancement of science ... 1844.

Galleries and Reading Room

Library

Shop

Café

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

Royal Exchange.

Works from the collections

A paper, on the patent azimuth and steering compass invented by E.J. Dent ... [together with a paper on the shape of the wheel-teeth in the clock for the new Royal Exchange] / Presented to the ... British Association for the advancement of science ... 1844.