Diagrams and photograph, gravity Daniell's cell by J T [James Thomson] Bottomley Three diagrams, labelled figures 1-3, showing a front and side view of the cell and the electrodes soldered to the four corners of the cell. There is an accompanying photograph attached to the page with the caption 'this is not to be engraved'. Subject: Electricity / Scientific apparatus and instruments Received 29 May 1884. Read 19 June 1884. Prints of the diagrams were published in volume 37 of the Proceedings of the Royal Society alongside the paper 'On a gravity Daniell's cell of very small internal resistance'. 1884