"There are curious remains near Cairo of a , where portions of trees have been found measuring 60 to 90 feet in length and 3 feet in diameter. It is said to have been formed by a deposit of sand and water which in the course of ages petrified the wood. But although there is little doubt that primeval forests existed in Egypt, they must have disappeared at a very early date, as no special mention of them occurs, either in the oldest monuments or writings."