256 NATURAL SCIENCE. Oct., 1894. 



is made to the subject by Mr. Herbert Bolton in the last part of the 

 Trans. Manchester Geol. Soc. (read June 12, 1894). ^^ describes 

 remains of plants and fishes from the Jarrow Colliery, Co. Kilkenny, 

 Ireland, and concludes with an explanation of the well-known fact 

 that a good deal of the anthracitic coal in this region does not rest 

 upon the ordinary fire-clay, but upon a black shale. He considers 

 that the coal thus situated represents the overflow of peaty matter 

 from a lagoon in the neighbourhood, and thinks the case may be 

 analogous to that of the bursting of a modern peat-moss. 



For the past thirteen years Dr. Hermann Credner, Professor of 

 Geology in the University of Leipzig, has contributed an important 

 series of memoirs to the Zeitschrift of the German Geological Society, 

 on the primitive batrachia and reptiles met with in the Lower Per- 

 mian Formation near Dresden. The series being now apparently 

 completed, he has just conceived the happy idea of presenting to 

 those who have received the reprints a title-page and table of con- 

 tents to preface the volume the memoirs will form when bound to- 

 gether. There is a list of eleven species of Stegocephali, mostly new, 

 and the reptiles comprise the two important forms, Palaohatteria and 

 Kadaliosaurus. Dr. Credner's very fine series of careful drawings are 

 only rivalled by those of Dr. Anton Fritsch, in his well-known Fauna 

 der Gaskohle, and the one work supplements the other. 



We have received from Messrs. Dulau & Co. a catalogue of 

 Zoological works, Mammalia, which contains some 2,500 entries. 



