Page:Collingwood - Life and Letters of Lewis Carroll.djvu/360

336 "Dined with Mrs. G (She had not sent an 'invitation'—only 'information.')."

His system of symbolic logic enabled him to work out the most complex problems with absolute certainty in a surprisingly short time. Thus he wrote on the 15th: "Made a splendid logic-problem, about "great-grandsons" (modelled on one by De Morgan). My method of solution is quite new, and I greatly doubt if any one will solve the Problem. I have sent it to Cook Wilson."

On March 7th he preached in the University Church, the first occasion on which he had done so:—

One can imagine how he would have treated the subject. The views which he held on the subject of reverence were, so at least it appears