Letter from William Crawford Williamson, on his paper 'On the organisation of the fossil plants of the coal-measures. Heterangium Tiliœoides (Will.) and Kaloxylon Hookeri' to the Secretary of the Royal Society He would rather withdraw his paper than publish it in the form that is recommended by the referees. Subject: Botany [Published in Proceedings of the Royal Society, 1887]. 30 March 1887