In copyright
It is possible this item is protected by copyright and/or related rights. You may be able to use this digital item under a copyright exception, otherwise you need to obtain permission from the rights-holder(s). These may be identified elsewhere in the catalogue record. Read more about copyright.
Read further guidance on copyright exceptions in the UK.
Credit
M0015495: Illustrations of electrometers for measuring and detecting small electric currents in electrophysiology: Lippmann's capillary electrometer, D'Arsonval's moving coil galvanometer and Einthoven's string galvanometer. In copyright. Source: Wellcome Collection.