(346/1.

At a meeting of the Geological Society, May 1st, 1833, a letter was read from Mr.Telfair to Sir Alex.

Johnstone, accompanying a specimen of recent conglomerate rock, from the island of Madagascar, containing fragments of a tusk, and part of a molar tooth of a hippopotamus ("Proc.

Geol.

Soc." 1833, page 479).