| RefNo | AP/36/1/3 |
| Level | Item |
| Title | Unpublished diagram, iron oxides by J [John] Eyre Ashby |
| Creator | Ashby, John Eyre (1820-1863); Fellow of the Royal Astronomical Society |
| Date | March 1855 |
| Description | A diagram in coloured ink illustrating the composition of iron(III) oxide and iron(II, III) oxide, with iron represented as red circles and oxygen represented as yellow circles.
Subject: Inorganic chemistry |
| Extent | 1p |
| Format | Diagram |
| PhysicalDescription | Ink on paper |
| AccessStatus | Open |