"LIQUID CRYSTALS images from the work of YVES BOULIGAND to illustrate Antarctica the last musical opus of FRANCOIS DE ROUBAIX" "Certain liquids obey the laws of crystallization." "Under a polarizing microscope, we observe transformations in structure, form and color with certain changes in temperature and pressure." ". 1." "Smectic to cholesteric transition isotropic liquid 2." "Smectic rods 3." "Supercooling of a cholesteric form"