Note 27 — PART I. ETHNOLOGIC AND ARCHÆOLOGIC.

Since this address was delivered Mr. H. T. Cresson has reported the finding of chipped implements made of argillite in a deposit of mid-glacial age on the banks of the Delaware River—Proc. Boston Soc. Nat. Hist. vol. xxiv; and portions of two skeletons completely converted into limonite have been exhibited at the Academy of Natural Sciences, Philadelphia, from a deposit in Florida, below one containing the remains of the extinct giant bison.