Reviews — F. W. Harmer — Glacial Geology. 331 



Ogygites (1 n.sp.), lUcenus (6 spp., of which. 1 is new), Ifileus, 

 Bathyuriis (1 n.sp.), Lichas, Calymene (1 n.sp.), iind Pliofnera 

 (1 n.sp.). 



The relations of tlie faunas from all three localities, apart from 

 obvious similarity to those of the Shan States, are in Dr. Heed's 

 opinion closest with those of North- West Europe. This is peril aps 

 more noticeable in the cephalopods than in the cystids. The 

 Echinosphsera Limestone of the Baltic Provinces and Scandinavia 

 certainly has an "abundance of cystideans ", but the general 

 composition of its cystid fauna is not much like that of Shih-tien. 

 On the contrary, connection Avith North America is closely indicated 

 by some of the new cystids, possibly by the so-called Camarocrinus, 

 and certainly by such cephalopods as AcUnoceras cf. ligslyi and the 

 Jovellania. 



The descriptions give sufficient detail, and Dr. Eeed seems to have 

 extracted a good deal of information from material sometimes 

 unpromising. Dr. Eeed's knowledge of these Ordovician faunas is 

 undoubtedly "extensive", but he might realize that it is also 

 "peculiar", and might sometimes make matters easier for his less 

 learned colleagues by stricter attention to the technical presentation 

 of his results. Thus, he gives a full description, with five figures, of 

 Semipronites giraldi var. no v. ytmnanensis ; but he entirely fails to 

 indicate in what it differs from the original species-form. Similarly, 

 in addition to the page-and-half description of Ogygites ymmanensis, 

 n.sp., it would have been well to furnish a brief specific diagnosis; 

 a few other species of the genus are mentioned, but the differences 

 are indicated for only two of them. A little more attention to 

 matters of this kind would be a great help to the weaker brethren, 

 and would add to the gratitude they feel for these interesting 

 accessions to our knowledge from the outermost fringes of empire. 



II. — The Glacial Geology of Nokfolk and Suffolk. By F. AY. 

 Hakmee, F.G.S. pp. 26, with 7 figures and a contoured map. 

 London: Jarrold & Sons; Dulau & Co., Ltd., 37 Soho Square, W. 1. 



JN this small book, reprinted from the Transactions of the Norfolk 

 and Norwich Naturalists' Society, vol. ix, Mr. Harmer gives 

 a summary, written in a somewhat popular style, of his well-known 

 work on the glacial deposits of East Anglia, and of the important 

 conclusions that he has been able to draw as to the sequence of 

 events in that area during the Pleistocene period. For more tlian 

 fifty years Mr. Harmer has devoted most of the leisure of a busy life 

 to this subject, and his conclusions are naturally deserving of the 

 most careful consideration. 



The lower part of the glacial series is classed under the collective 

 name of the North Sea Drift, including the Cromer Till and Con- 

 torted Drift of other authors. This contains numerous far-travelled 

 erratics from Scotland and Scandinavia, of quite unmistakable 

 types, and the source of this material is not a matter of controversj'. 

 The brickearths of the interior of Norfolk may be taken to represent 

 the moraine profonde of the North Sea ice-sheet, while the Cromer 



