Copy letter from Michael Foster, to Lieutenant Colonel A O Green, Commanding Royal Engineer in Egypt, Headquarters, Cairo 'Sir, I am directed by the President and Council to acknowledge your letter of December 28, 1895, and to express their satisfaction that the borings in the Nile Delta promise to be of material service. I trust to be able very shortly to address you again on the subject. I am, Sir, your obedient servant, M Foster Sec. R.S. [Secretary, Royal Society]'. 20 January 1896