Item 118 - Letter from Augustus De Morgan

3 pp

7 Camden St. & T. - He sends Whewell 'a piece of audacity of which your eye will detect the visible signs at a glance'. He gives an example of the knife and fork theory of figure he previously sent WW [see ADM to WW, 1 Apr. 1849]. He finds it easier to get the more difficult cases of syllogism by 'figuring the symbol in my head - and detecting the symbol of inference - than by thought'.