the Tropics

the 14 Bravais lattices the 230 crystallographic space groups the 32 crystallographic point groups the abandoned character the ABC guide the above the absurd the academic year the accused the acme of happiness the acme of perfection the acme of sciences

sulci sinus transversi sulci spinosus sulci spiralis sulci spiralis externus sulci splralis internus sulci subclaviae sulci subclavius apicis pleurae sulci subclavius pulmonis sulci subparietalis sulci subprasplenial