. . . . . . "Conversations on geology; comprising a familiar explanation of the Huttonian and Wernerian systems; the Mosaic geology"@en . "Conversations on Geology; comprising a familiar explanation of the Huttonian and Wernerian systems; the Mosaic geology, as explained by Mr. Granville Penn; and the late discoveries of Professor Buckland, Humbolt, Dr Macculloch, and others. [With plates.]"@en . . . . . . . .