Diagrams, experimental observations by C R [Charles Romley] Alder Wright, C Thompson and J T Leon Six diagrams in black ink, labelled figures 1-6, showing geometrical figures relating to problems posed by the authors in the accompanying paper and three graphs showing the results of experiments on acetic acid in lighter fluid and acetic acid. Includes a note to th engraver. Subject: Metallurgy / Chemistry Prints of these diagrams were published in volume 49 of the Proceedings of the Royal Society alongside the paper 'On certain ternary alloys. Part IV. On a method of graphical representation (suggested by Sir G. G. Stokes) of the way in which certain fused mixtures of three metals divide them selves into two different ternary Alloys; with further experiments suggested thereby'. 1891