Reviews — Dr. Friisch's Fauna of the Gas-coal. 83 



the value of the mineralogical compendium, one of the most im- 

 portant parts of the book to the prospector. 



The greater part of the remainder of the volume is devoted to 

 a detailed account of the various gold-fields, and of the copper, lead, 

 tin, and coal deposits, this account being certainly by far the best 

 which has yet appeared. The description of the coal-fields, on 

 the value of which the development of the colony in no small 

 measure depends, is mainly taken from Mr. Woodward's last annual 

 report, lately noticed in these pages. Three appendices follow, con- 

 taining those laws and regulations which are of importance to 

 prospectors, some advice as to their outfit and mode of operation, 

 many useful tables, a glossary of scientific and mining terms, and 

 full information on shipping and railway matters. As already stated, 

 the whole book is highly creditable to Mr. Woodward and to the 

 Government Department represented by him. Not a page is wasted, 

 and hardly a page could be added to it with advantage. It need 

 hardly be added that it will be indispensable to every visitor to the 

 colony, to say nothing of the prospectors. T. K. E. 



II. — The Fauna of the Bohemtan Gas-coal. "Fauna der 

 Gaskohle und der Kalksteine der Permformation Bohmens." 

 Bv Dr. Anton Fritsch. Vol. Ill, part 4. Pp. 105-132, pis. 

 123-132, with Title-page and Index to Vol. III. (Prague : Fr. 

 Eivnac, 1895.) 



WITH the exception of a brief supplement, Dr. Anton Fritsch 

 has now completed his description of the fossil vertebrata 

 of the Permian formation of Bohemia. The latest instalment, 

 received in the middle of December, concludes the third volume 

 of his great work and deals with the Paheoniscid fishes which 

 remained to be treated after the issue of the preceding part a year 

 ago. The systematic descriptions are continued in the usual manner, 

 and there is appended a useful summary of the chief points in the 

 structure of the Palseoniscidee as the author has observed them. 



Most of these fishes discovered in the Bohemian Permian belong 

 to the genus Amblypterus, as now generally defined, and Dr. Fritsch 

 recognizes seven species, one of these with no less than six named 

 varieties. Amblypterus Feistmanteli and A. Zeidleri are described 

 as new species in the part of the work before us. There are 

 beautiful figures of the ornamented head-bones of the variety 

 A. Rohani (Heckel) ; while restored figures of this form, of A. luridiis 

 (Heckel), A. obliquus (Heckel), and A. Beussi (Heckel) are also 

 given. The latter are in some respects tentative and incomplete, 

 and we would question the accuracy of the drawing of the anterior 

 dorsal fin-rays in A. luridiis, as also the diminutive proportions of 

 the circumorbital ring in the same fish. Most welcome additions 

 to our knowledge of details in the osteology of the genus appear 

 throughout the descriptions and figures ; and the discovery of 

 tritoral teeth on one of the inner mouth-bones in A. Feistmanteli is 

 particularly interesting. 



Two small and one large species are doubtfully referred by Dr. 



