tion which helps to constitute the spatial concretion called the sun. Roundness may therefore be carelessly called an abstraction from the real object “sun”; whereas the peculiar optical and muscular feelings by which the sense of roundness is constituted—probably feelings of gyration and perpetual unbroken movement—are much earlier than any solar observations; they are a self-sufficing element in experience which, by repetition in various accidental contests, has come to be recognised and named, and to be a characteristic by virtue of which more complex objects can be distinguished and defined. The idea of the sun is a much later product, and the real sun is so far from being an original datum from which roundness is abstracted, that it is an ulterior and quite ideal construction, a spatial concretion into which the logical concretion roundness enters as a prior and independent factor. Roundness may be felt in the dark, by a mere suggestion of motion, and is a complete experience in itself. When this recognisable experience happens to be associated by contiguity with other recognisable experiences of heat, light, height, and yellowness, and these various independent objects are projected into the same portion of a real space; then a concretion occurs, and these ideas being recognised in that region and finding a momentary embodiment there, become the qualities of a thing.
A conceived thing is doubly a product of mind, more a product of mind, if you will, than an idea,