Dictionnaire Pittoresque d’Histoire Naturelle et des Phenomenes de la Nature. F. E. Guerin, 1833.
Land Snail Shells
Did you know that the science of studying gastropod shells is called conchology? Almost 90% of gastropod shells coil to the right. Oh, oh, and the color "Tyrian purple" (the purple that only emperors and royalty were allowed to - or could afford to - wear) comes from the Spiny dye-murex shell!
Shells are cool!