Discovered this morning in a beautiful old book :) Diatoms have lacy cases Of material silicaceous, Perforated lids and bases Made to fit like Petri dishes. Nursed on Nature’s hydroponic They’re prolific and nutritious Making bouillabase planktonic For the sustenance of fishes. - Ralph Lewin Taken from ‘The Fertile Sea’, by A.P. Orr and S.M. […]