 Tabby was constructed of shells left over from Timucua middens, burned by the barrel-full in open pits or kilns, then pounded into lime particles, mixed with water, sand, and whole oyster or clam shells, then poured into wooden foundations about high, and set to dry.The process was repeated and stacked until the desired height of the wall was reached.The floors of the kitchen house and the basement of the owner's house were also constructed of tabby.