Chapter XXIX: Appendix: D

The following list gives the colours, and the various uses for them. They have already been used in the foregoing pages to distinguish the various regions of the Tessaract, and the different individual cubes or Tessaracts in a block. The other use suggested in the last column of the list has not been discussed; but it is believed that it may afford great aid to the mind in amassing, handling, and retaining the quantities of formulae requisite in scientific training and work.

_Region of _Tessaract
_Colour._ Tessaract._ in 81 Set._ _Symbol._
Black Syce Plebs 0
White Mel Mora 1
Vermilion Alvus Uncus 2
Orange Cuspis Moles 3
Light-yellow Murex Cortis 4
Bright-green Lappa Penates 5
Bright-blue Iter Oliva 6
Light-grey Lares Tigris 7
Indian-red Crux Orcus 8
Yellow-ochre Sal Testudo 9
Buff Cista Sector + (plus)
Wood Tessaract Tessara - (minus)
Brown-green Tholus Troja ± (plus or minus)
Sage-green Margo Lacerta × (multiplied by)
Reddish Callis Tibicen ÷ (divided by)
Chocolate Velum Sacerdos = (equal to)
French-grey Far Scena ≠ (not equal to)
Brown Arctos Ostrum > (greater than)
Dark-slate Daps Aer < (less than)
Dun Portica Clipeus ∶ } signs
Orange-vermilion Talus Portio ∷ } of proportion
Stone Ops Thyrsus · (decimal point)
Quaker-green Felis Axis ∟ (factorial)
Leaden Semita Merces ∥ (parallel)
Dull-green Mappa Vulcan ∦ (not parallel)
Indigo Lixa Postis π⁄2 (90°) (at right
angles)
Dull-blue Pagus Verbum log. base 10
Dark-purple Mensura Nepos sin. (sine)
Pale-pink Vena Tabula cos. (cosine)
Dark-blue Moena Bidens tan. (tangent)
Earthen Mugil Angusta ∞ (infinity)
Blue Dos Frenum a
Terracotta Crus Remus b
Oak Idus Domitor c
Yellow Pagina Cardo d
Green Bucina Ala e
Rose Olla Limen f
Emerald Orsa Ara g
Red Olus Mars h
Sea-green Libera Pluma i
Salmon Tela Glans j
Pale-yellow Livor Ovis k
Purple-brown Opex Polus l
Deep-crimson Camoena Pilum m
Blue-green Proes Tergum n
Light-brown Lua Crates o
Deep-blue Lama Tyro p
Brick-red Lar Cura q
Magenta Offex Arvus r
Green-grey Cadus Hama s
Light-red Croeta Praeda t
Azure Lotus Vitta u
Pale-green Vesper Ocrea v
Blue-tint Panax Telum w
Yellow-green Pactum Malleus x
Deep-green Mango Vomer y
Light-green Lis Agmen z
Light-blue Ilex Comes α
Crimson Bolus Sypho β
Ochre Limbus Mica γ
Purple Solia Arcus δ
Leaf-green Luca Securis ε
Turquoise Ancilla Vinculum ζ
Dark-grey Orca Colus η
Fawn Nugæ Saltus θ
Smoke Limus Sceptrum ι
Light-buff Mala Pallor κ
Dull-purple Sors Vestis λ
Rich-red Lucta Cortex μ
Green-blue Pator Flagellum ν
Burnt-sienna Silex Luctus ξ
Sea-blue Lorica Lacus ο
Peacock-blue Passer Aries π
Deep-brown Meatus Hydra ρ
Dark-pink Onager Anguis σ
Dark Lensa Laurus τ
Dark-stone Pluvium Cudo υ
Silver Spira Cervix φ
Gold Corvus Urna χ
Deep-yellow Via Spicula ψ
Dark-green Calor Segmen ω