Fossil plants have been found in the Pensauken formation, 1¼ miles southeast of Dunham's Corner, in East Brunswick Township, Middlesex County, New Jersey. A few years ago the attention of the junior author was called to this occurrence by a farmer, Floyd S. Clark, who had noticed the fossil leaves. On the south side of the road known as Fern Drive, about three miles south of the town of South River, on the old Stults farm, a hillock rises to a height of about 130 feet above sea level. It is capped by sand and gravel of a yellow color, belonging to the Pensauken formation, in which there is an abandoned pit from which blocks of limonitic sandstone were removed years ago, to be used in walls and foundations. The cementation of the sand by limonite has resulted in the preservation of the impressions of plant remains which were . . .