Whitehead and Transmutation

One categorial factor in any experience, according to Whitehead, is 'Transmutation', the projection of private phenomena into a perceptual object. Three well-known examples of Transmutation include one that he explicitly credits--Locke's Secondary Qualities, and two to which he implicitly alludes--Gestalt Theory's homogenization of perceptual data, and Santayana's analysis of Beauty as 'objectified pleasure'. However, he misses its potential application to Hume's 'Missing Shade of Blue' problem--that the inferring of an unsensed shade from given shades is a Gestalt homogenization of them. Furthermore, he nowhere explicitly entertains the relevance of Transmutation to purposeful action, i. e. that the physical modification of an environment for practical purposes effects a transmutation of it. Whitehead therefore has no occasion to consider that physical Transmutation is not a special case of the category, but its original.