245. Can a ‘disposition of coloured points’ be an impression?
246. The points must be themselves impressions, and therefore not co-existent.
247. A ‘compound impression’ excluded by Hume’s doctrine of time.
248. The fact that colours mix, not to the purpose.
249. How Hume avoids appearance of identifying space with colour, and accounts for the abstraction of space.
250. In so doing, he implies that space is a relation, and a relation which is not a possible impression.
251. No logical alternative between identifying space with colour, and admitting an idea not copied from an impression.
252. In his account of the idea as abstract, Hume really introduces distinction between feeling and conception;
253. … yet avoids appearance of doing so, by treating ‘consideration’ of the relations of a felt thing as if it were itself the feeling.
254. Summary of contradictions in his account of extension.