. Elements of geology, or, The ancient changes of the earth and its inhabitants as illustrated by geological monuments. Geology. Cerithium plicatum, Cerithium elegans, Eisaoa Chastelii, Nyst. Paludina lenta. Lam. Hempstead. Hempstead. Sp. Hempstead, Isle Hempstead Bede. of Wight. mixture of Hempstead shells with those of the underlying Upper Eocene or Bern- bridge series. The mammalia, among which is Uyopotamus bovinus, differ, so far as they are known, from those of the Bembridge beds. Among the plants, Pro- fessor Heer has recognized four species common to the lignite of Bovey Tracey, a Lowe
. Elements of geology, or, The ancient changes of the earth and its inhabitants as illustrated by geological monuments. Geology. Cerithium plicatum, Cerithium elegans, Eisaoa Chastelii, Nyst. Paludina lenta. Lam. Hempstead. Hempstead. Sp. Hempstead, Isle Hempstead Bede. of Wight. mixture of Hempstead shells with those of the underlying Upper Eocene or Bern- bridge series. The mammalia, among which is Uyopotamus bovinus, differ, so far as they are known, from those of the Bembridge beds. Among the plants, Pro- fessor Heer has recognized four species common to the lignite of Bovey Tracey, a Lower Miocene formation presently to be described: namely, Sequoia Couttsice, Heer; Andromeda reticulata, Etting; Nymphcea Doris, Heer ; and Carpolithes Webster i, Brong.* The seed-vessels of Char a medicaginula, Brong., and C. helecteres are characteristic of the Hempstead beds generally. The Hyopotamus belongs to the hog tribe, or the same family as the Anthracotheriuui, of which seven species, varying in size from the hippopotamus to the wild boar, have been found in Italy and other parts of Europe associated with the lignites of the Lower Miocene period. Lignites and Clays of Bovey Tracey, Devonshire.—Surrounded by the granite and other rocks of the Dartmoor hills in Devonshire, is a for- mation of clay, sand, and lignite, long known to geologists as the Bovey Coal formation, respecting the age of which, until the year 1861, opinions were very unsettled. This deposit is situated at Bovey Tracey, a village distant eleven miles from Exeter in a south-west, and about as far from Torquay in a north-west direction. The strata extend over a plain nine miles long, and they consist of the materials of decom- posed and worn-down granite and vegetable matter, and have evident- ly filled up an ancient hollow or lake-like expansion of the valleys of the Bovey and Teign. * Pengelly, preface to The Lignite Formation of Bovey Tracey, p. xvii.: Lon- don, Please note that these images
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectgeology, bookyear1868
