Unpublished diagrams, experimental equipment by Henry Charlton Bastian Three figures in black ink, labelled figures 1-3. The first shows a glass container half filled with liquid. A pipette is inserted into the top of the container. The second diagram shows a glass tube containing liquor potassae and a note reads 'This fig. is already engraved for Proc [the Proceedings of the Royal Society]. The third diagram shows another glass tube containing liquor potassae with two stoppers inserted into it. Subject: Chemistry / Scientific apparatus and equipment Drawn by Bastian at 20 St Anne Street. 1876