426 Revieics—Brochhank and Be Ranee — Geological Section. 



from his unpublished MS. Long-continued researches in connexion 

 with the Forest Bed series and Boulder-clay eventually led Mr. Gunn 

 into wide speculations as to the cause of the Glacial Period ; and in 

 his published " Sketch " he treated of still more recent phenomena, 

 making interesting observations on the growth and accumulation 

 of plants in the Norfolk Broads. 



Mr. Gunn's own chapters in the volume before us, as might be 

 expected, relate almost entirely to the Forest Bed series. Even to 

 the last his views as to this formation and some of its fossil 

 Mammalia were not altogether in accordance with those of the 

 latest authors ; and a table is added to show Mr. Gunn's classification 

 of the deposits as compared with the schemes of Prof. Prestwich 

 and Mr. Clement Eeid. It is of great value to have a permanent 

 record of the observations and conclusions of one who made so 

 prolonged and detailed a study of this much-discussed series ; and 

 some new woodcuts help to explain the text. The notes on the 

 Mammalia were evidently only just begun, and are thus confined 

 to a discussion of the so-called ElepJias (Leptodon) giganteus, Gervus 

 hovides, and Genus Gromptoni. None of these names are adopted by 

 Mr. E. T. Newton, who supplies the latest lists of the Forest Bed 

 and Norwich Crag Vertebrate Faunas ; but it is very satisfactory 

 to have a definite statement by the author of the grounds upon 

 which he founded his determinations. 



The little volume of " Memorials " is, indeed, a work of far more 

 than local interest ; and we commend it to the notice of all who are 

 occupied in studying the latest phase in the geology of the western 

 border of Europe. 



IV. — Notes on the Geological Section exposed in the Eailway 

 Cutting from Levenshulme to Fallowfield. Part I. By 

 Wm. Bkockbank and C. E. de Eanoe. Mem. and Proc. Lit. and 

 Phil. Soo. Manchestek, ser. 4, vol. iv. pages unknown, with 

 plate V. in 3 sections : date uncertain, 1891.' 



IN this section the Upper Measures of the Lancashire Coal-field, 

 possibly the highest Coal-Measures known in England, are 

 seen to underly " Lower Eed Sandstone " of Permian age. In the 

 present paper the authors describe the eight groups of limestones 

 with associated marls that form the Upper Coal Measures in this 

 locality. The sixth group from the top is considered to correspond 

 with the Ardwick Limestone of Phillips containing Megalichfhys 

 Hihberti. Most of these Limestones consist largely of Entomostracan 

 and Annelide remains, and contain numerous coprolites, but not 

 many other fossils. The presence of Hematite produces "beautiful 

 gradations of colour" in both limestones and marls, and we are 

 assured that, in the long coloured section given with the paper, the 

 actual tints are reproduced ; to dispel doubts excited by the brilliancy 

 of the plates, this assurance is subsequently repeated. The authors 



1 As the Authors' copy, which alone has been sent to us, has been repaged, we 

 are unable to give our readers the correct reference to the original place of publi- 

 cation. 



