 This is an issue on which more recent scholars tend to disagree with some earlier ones. The capitol part thesis states that we cannot reflect on or distinguish among SQs without conceiving the sensations that signify them. This suggests a close conceptual connection between qualities and their proper sensations. Lehrer (1989: 27) maintains it commits Reid to a view on which the meaning of, say, “X is red” essentially contains concepts of sensations of red. If Reid holds that SQs are dispositions manifested by sensations. he is committed to this semantic claim. But the present question is whether or not the capitol part thesis commits him to the semantic claim.