Notices of Memoirs. 523 



in precision. The work will nevertheless be useful to two classes 

 of students ; those who are investigating the geology and physical 

 history of the Caucasus, and specialists in petrology or palaeontology 

 who desire to see all the material available for their researches. 

 In his readiness to enter into relations with specialists Dr. Radde 

 pursues an enlightened and liberal policy, so that readers of the 

 catalogue need not imagine that because the specimens are in Tiflis 

 it is no use to trouble about them. The collotype plates illustrating 

 this volume afford a sample of the treasures within ; two are of 

 rook-sections, one of undescribed species of Ammonites, and two 

 of species of Cardium, Congeria, Dreissenia, Bissoa, Neritina, and 

 Natica ; one of the figures is labelled " Cardium apscheronicum, n.sp.," 

 but we can find no description. 



VII. — Geology of Devonshire. — The main part of No. 3 of the 

 Proceedings of the Geologists' Association of London is devoted to 

 an account of the excursion made by the members to the Start, 

 Prawle, and Bolt districts during Easter this year. The report is 

 written by W. A. E. Ussher, who gives in his introductory remarks, 

 as well as in his report, a good deal of interesting matter which 

 will be much appreciated by Devonians especially. In the report 

 are incorporated many notes by A. E. Hunt. The result enabled 

 those who enjoyed the excursion to realize the geological difficulties 

 of the region, and served to whet their appetites for the long- 

 expected memoir upon it. 



VIII. — On a New Fossil Lizard from the Beds of the Lower 

 Chalk Formation in the Island of Lesina [Coast of Dalmatia] ; 

 by A. Kornhuber. — " Ueber eine neue Fossile Eidechse aus den 

 Schichten der unteren Kreideformation auf der Insel Lesina." 

 (Verhandlungen der k.k. geol. Reichsanstalt, 190L) — In this 

 paper the author describes another of the remarkable reptilian 

 skeletons from the thinly bedded Lower Cretaceous limestones of 

 the island of Lesina. In this instance the skeleton is that of a 

 lizard about 1-4 metres long, apparently in its general structure 

 related to the Varanidse, but in its dentition approaching the 

 MosasauridaB. The specimen is made the type of a new genus, 

 Opetiosaurus, the specific name being 0. Bucchichi. 



IX. — Shorter Notices. — Georgia Bauxite. — The most im- 

 portant article in the American Geologist for July is T. L. Watson's 

 account of the Bauxite deposits of the Coosa Valley region of Georgia 

 and Alabama. Discovered in 1887, these fields now provide the 

 entire home consumption of the United States. After a sketch of 

 the geology of the area and the geological position of the mineral, 

 the author deals with the associated minerals, chemical composition, 

 origin, and age of the deposits. This latter is apparently the close 

 of the Eocene period. 



Beach Structure. — Another article in the same Journal of 

 considerable interest is H. L. Fairchild's "Beach Structure in 

 Medina Sandstone," which is illustrated by five plates of repro- 

 ductions from photographs. The author describes the various 



