Geology. 325 



volume: Part I, "Carboniferous Invertebrates," by Mr. Joshua 

 W. Beede, is a doctorate thesis, in which descriptions and figures 

 of all the species in the writer's hands are given, none of which 

 appear here for the first time. Several of the species were origi- 

 nally described by the author in vol. viii of the Kansas University 

 Quarterly. The paper makes a satisfactory illustrated catalogue 

 of part of the known Carboniferous species of the State. 



In the second paper, Prof. Williston makes a definite contribu- 

 tion to our knowledge of the very unsatisfactory, but still 

 important, group of Cretaceous teeth of Selachians and Pycno- 

 donts. 



The third paper, by Mr. Alban Stewart, is the report of a 

 thorough investigation of a valuable collection of specimens rep- 

 resenting the Teleosts of the Upper Cretaceous, in which detailed 

 descriptions and measurements are given of the specimens in 

 hand. At the close, the author has tabulated the known range 

 of American Cretaceous genera of Teleosts, and, further, has 

 presented a table of genera of Teleost fishes from the Upper Cre- 

 taceous of various parts of the world. 



The volume is the sixth of the series of volumes prepared by 

 the University Geological Survey of Kansas, which are intended 

 to be manuals for the use of students and the people of Kansas, 

 rather than pure records of new discoveries. w. 



3. The Orange River Ground- Moraine. — The subject of the 

 glaciation of South Africa by land ice is one which has been 

 often discussed, and about which various opinions have been 

 expressed. An important contribution has been recently made 

 by A. W. Rogers and E. H. L. Schwaez, in vol. xi of the 

 Transactions of the Philosophical Society ol South Africa (Sep- 

 tember, 1900). They describe a peculiar conglomerate which 

 covers a wide area in the divisions of Prieska and Hopetown in 

 the northern part of Cape Colony. This is regarded as probably 

 continuous with the Dwyka conglomerate of the southern Carroo, 

 which has been thought to be of glacial origin ; their exact rela- 

 tion,, however, is uncertain. The Prieska conglomerate has in 

 part a distinct till-like character; in part it seems to be stratified, 

 but it carries large numbers of scratched pebbles and bowlders. 

 The maximum thickness is estimated as some hundreds of feet, 

 although the absence of sections at many localities leaves this in 

 doubt. At one point the thickness beneath the shale exposed is 

 only thirty feet; but the suggestion is made that the shale may 

 have originally lain between two bands of conglomerate. The 

 rocky surface underlying the conglomerate, usually quartzite or 

 granite, shows at several localities an unmistakably glacial char- 

 acter, which is well brought out in a series of plates accompany- 

 ing this article. The surface of the quartzite, for example, is 

 smooth and rounded with distinct striae having a general trend of 

 N.N.E. to S.S.W. ; this is on the gently inclined northern slopes 

 of the mounds. The southern sides, on the other hand, which 

 are like the roches moutonnes of Switzerland, are rough and 



