Prof. Weishach's Mineralogical Tables. 557 



F. Gregory does border upon any large river, as he supposed, it 

 must be the Fitzroy, which again we also know to be, at least in the 

 present age, too small to have produced such appearances. This 

 fact goes greatly in favour of Mr. Clarke's hypothesis of an ancient 

 Strait. — Editor of the " Perth Gazette." 



n. — Quarterly Journal of the Geological Society of London. 

 Vol. XXII. Part. III. November, 1866. 



F noticing this part of the Geological Society's Journal, we must 

 content ourselves with calKng attention to the number and 

 variety of the papers contained in it. There are thirty -three papers, 

 besides several miscellaneous abstracts. It would occupy too much 

 space to give an analysis of each of the former, the list alone of 

 which would occupy nearly two j)ages, nor is it necessary, as 

 abstracts of the whole of them have appeared in previous numbers 

 of the Geological Magazine, in the reports of the meetings of the 

 Geological Society from March 21, to June 20, 1866. 



We feel sure that no geologist could fail to find some one or more 

 subjects of special interest to himself among these communications 

 now published. 



In the Miscellaneous part of the Journal are papers which we 

 have not noticed before : — 



1st. Abstracts of M. Dupont's researches among the caverns of 

 the valley of the Lesse (see p. 564) ; a notice, by Chevalier von Hauer, 

 of a new genus of Cephalopods, Choristoceras. It is somewhat similar 

 in form to Crioceras, with the lobular ornamentation characteristic 

 of Ceratites. Specimens of this new genus — to which the name 

 Marsha, has been given in honour of Mr. 0. C. Marsh, F.G.S., 

 who first noticed its occurrence — have been discovered in Austria in 

 a bed resting on Kossen strata and overlain by Liassic limestones. 



2nd. The occurrence of the Marmot (Arctomys marmota) in a recent 

 formation in Styria is noted. 



3rd. A notice on the Gasteropods of St. Cassian, by Dr. Laube. 

 This fauna possesses many species analogous to forms found in the 

 Carboniferous Limestone, and is particularly interesting as being a 

 "limit-fauna," comprehending representatives of a number of un- 

 doubtedly Paleeozoic genera associated with others whose full de- 

 velopment took place afterwards in the course of the Mesozoic 

 Period. 



ITT . — Tabellen zur Bestimmung der Mineralien nach aussepen 

 Kennzeiohen (Tables for the Deterbiination of Minerals 

 BY External Characters). Herausgegeben von Albin Weis- 

 BACH, Professor an der Bergacademie zu Freiberg. Leipzig, 

 1866. pp. 109. Arthur Felix. 



THE object of these Tables is to enable a person to find out what 

 a mineral is by means of its physical characters. The author 

 has lately succeeded the veteran Professor Breithaiipt in the chair of 

 Mineralogy at Freiberg, and is a son of the well-known Professor 



