Diagrams, crystals suspended between poles by [Julius Plucker?] Figures 1-12 showing crystals of ferridcyanide of potassium [potassium ferricyanide] in various shapes, suspended between poles. Inscribed with publication and plate details. Figures drawn separately and pasted onto backing sheet. Struck-out watercolour drawings appearing to show anatomical figures visible verso. Not signed. The manuscript for this paper is wanting. Subject: Physics Published in Philosophical Transactions as part of paper titled 'On the magnetic induction of crystals' by Julius Plucker. Received by the Royal Society on 26 March 1857. Read 23 April 1857. [1857]