Crossword-Solution: PARALLELEPIPEDS 15 letters, 1 clue 🏆 scrabble score: 22

What a cube, or tetrahedron, is to organic form, ungradated and unconfused colour is to organic colour; and a person who attempts to arrange colour harmonies without gradation of tint is in precisely the same category, as an artist who should try to compose a beautiful picture out of an accumulation of cubes and parallelepipeds.

Again there were figured numbers, namely, triangular numbers, squares, oblong numbers, polygonal numbers (pentagons, hexagons, &c.) corresponding respectively to plane figures, and pyramidal numbers, cubes, parallelepipeds, &c., corresponding to solid figures in geometry.

The attempt has been made, notably by Méray in France and de Paolis in Italy, to treat the corresponding propositions of plane and solid geometry together; as, for example, those relating to parallelograms and parallelepipeds, and those relating to plane and spherical triangles.

Small objects--bone _styli_, small sherds, loomweights (pierced terracotta parallelepipeds, whose weight held the threads hanging straight down on an ancient vertical loom), lamps, fragments of inscriptions--went into separate marked cloth bags.