Diagram, experimental equipment by Charles Romley Alder Wright and C Thompson A diagram showing Wright and Thompson's aeration plate covered by a bell jar to avoid 'alteration of the fluid by evaporation, attraction of moisture, carbonic acid, &c., from the air, falling in of dust, and so on'. The diagram is labelled and described in detail in the accompanying paper. Subject: Chemistry / Electricity / Scientific apparatus and instruments A print of this diagram was published in volume 44 of the Proceedings of the Royal Society alongside the paper 'On the development of voltaic electricity by atmospheric oxidation'. 1888