JDH asks Mountstuart Elphinstone Grant Duff to speak in 'the House' [of Commons] on behalf of RBG Kew as its scientific function & JDH's role as Director are under threat from [Acton Smee] Ayrton. [Ayrton Controversy]. JDH has attended a committee meeting of the Cabinet at Lord Rippon's, attended by Rippon, Lord Halifax & Mr Cardwell. Ipecacuanha has been introduced to Sikkim, India: propagated from plant RBG Kew sent out in 1866. The Edinburgh plants are still at Calcutta [Kolkata].